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1,956 media by topicpage 1 of 20
Stanley R. Mickelsen Safeguard Complex, Cooling Tower, In Limited Access Area, between Service Roads D & A, Nekoma, Cavalier County, ND

Stanley R. Mickelsen Safeguard Complex, Cooling Tower, In Limited Acce...

Significance: The tower provided cooling water to the Perimeter Acquisition Radar Power Plant during normal surveillance operations. Survey number: HAER ND-9-S Building/structure dates: 1972 Initial Construction

Croton Hydroelectric Plant, Dam, Croton Dam Road at Muskegon River, Croton, Newaygo County, MI

Croton Hydroelectric Plant, Dam, Croton Dam Road at Muskegon River, Cr...

Significance: The earth embankment dam at the Croton Hydroelectric Plant is an innovative design feature of this complex designed by William G. Fargo, a Jackson, Michigan civil engineer who specialized in desig... more

Shaker Church Family Firehouse & Powerhouse, Shaker Village Road, Canterbury, Merrimack County, NH

Shaker Church Family Firehouse & Powerhouse, Shaker Village Road, Cant...

Survey number: HABS NH-182 Building/structure dates: 1908 Initial Construction Building/structure dates: 1910 Subsequent Work

SWEPCO Park, 1600 Patzman Street, Shreveport, Caddo Parish, LA

SWEPCO Park, 1600 Patzman Street, Shreveport, Caddo Parish, LA

Entry 2017 HALS Challenge: Documenting City or Town Parks Significance: The historic importance of the SWEPCO Park, established in 1969, is rooted in the layers of activity and events that have occurred within ... more

Garrison Dam, Intake House, 597 Garrison Dam Road, Riverdale, McLean County, ND

Garrison Dam, Intake House, 597 Garrison Dam Road, Riverdale, McLean C...

Significance: The intake house was built to take water in from Lake Sakakawea and conduct it to the powerhouse (HAER ND-15-A) via penstocks and surge tanks (HAER ND-15-B). The intake house maintained trash rack... more

Garrison Dam, Spillway, State Route 200 at Missouri River, Riverdale, McLean County, ND

Garrison Dam, Spillway, State Route 200 at Missouri River, Riverdale, ...

Significance: The spillway was built to release excess water from Lake Sakakawea whenever high water threatens to overtop and destroy Garrison Dam. Unprocessed Field note material exists for this structure: N1... more

Snoqualmie Falls Hydroelectric Project, Elevator House, .5 mile north of Snoqualmie, Snoqualmie, King County, WA

Snoqualmie Falls Hydroelectric Project, Elevator House, .5 mile north ...

Significance: Construction of the Snoqualmie Falls Hydroelectric Project began in 1898 near the falls of the falls of the Snoqualmie River. It was the first power plant successfully constructed completely under... more

Swan Falls Dam, Restroom, Snake River, Kuna, Ada County, ID

Swan Falls Dam, Restroom, Snake River, Kuna, Ada County, ID

For written descriptive information, see narrative report on Swan Falls Dam, HAER ID-20. Significance: Swan Falls Dam was the first hydroelectric dam on Snake River in Idaho, and one of the earliest built in th... more

Garrison Dam, Project Administration Building, 201 1st Street, Riverdale, McLean County, ND

Garrison Dam, Project Administration Building, 201 1st Street, Riverda...

Significance: The Project Administration Building was built to supply office space for staff managing the construction of Garrison Dam, and it serves as administrative offices for the dam today. Its symmetrical... more

Garrison Dam, Switchyard, 597 Garrison Dam Road, Riverdale, McLean County, ND

Garrison Dam, Switchyard, 597 Garrison Dam Road, Riverdale, McLean Cou...

Field notes for HAER ND-15-A, Garrison Dam Powerhouse, include information about the switchyard. Significance: The switchyard provides generator and line protection, voltage and and amperage monitoring, and pow... more

Bloede Dam, Spanning Patapsco River, Avalon, Baltimore County, MD

Bloede Dam, Spanning Patapsco River, Avalon, Baltimore County, MD

Significance: In 1907, the Patapsco Electric and Manufacturing Company contracted Ambursen Hydraulic Construction Company to build the Bloede Dam using Nils F. Ambursen's patent. The proposed dam would generate... more

Commonwealth Edison Company, Crawford Electrical Generating Station, 3501 South Pulaski Road, Chicago, Cook County, IL

Commonwealth Edison Company, Crawford Electrical Generating Station, 3...

Significance: The buildings of the Crawford Electric Generating Station were designed by the renowned architectural firm of Graham, Anderson, Probst and White; the Crawford Station also reflects the rapid expan... more

Garrison Dam, Powerhouse, 597 Garrison Dam Road, Riverdale, McLean County, ND

Garrison Dam, Powerhouse, 597 Garrison Dam Road, Riverdale, McLean Cou...

Significance: The powerhouse was built to generate electrical power via hydroelectric turbines and generators, using the water impounded in Lake Sakakwea as its energy source. The electricity feeds into the Wes... more

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Richland County, SC

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Ric...

Significance: Designed to enable the navigation of the Broad and Congaree Rivers at their confluence in Columbia, the canal was completed in 1824 and enlarged in 1891; the 1891 portion of the canal is the signi... more

Rocky Mountain Laboratories, Building No. 7, 903 South Fourth Street, north rear, Hamilton, Ravalli County, MT

Rocky Mountain Laboratories, Building No. 7, 903 South Fourth Street, ...

Significance: The Rocky Mountain Laboratories possess national significance due to the pioneering research conducted at these laboratories from 1921-1945 toward the development of vaccines for insect-borne dise... more

Swan Falls Dam, House, Snake River, Kuna, Ada County, ID

Swan Falls Dam, House, Snake River, Kuna, Ada County, ID

For written descriptive information, see narrative report on Swan Falls Dam, HAER ID-20. Significance: Swan Falls Dam was the first hydroelectric dam on Snake River in Idaho, and one of the earliest built in th... more

Pennsylvania-New Jersey Interconnection Bushkill to Roseland Transmission Line, From Roseland Borough, Essex County, through Morris County and Sussex County to Hardwick Township, Warren County, Roseland, Essex County, NJ

Pennsylvania-New Jersey Interconnection Bushkill to Roseland Transmiss...

Significance: The creation of the 210-mile-long transmission line known as the Pennsylvania-New Jersey Interconnection (PNJ) was a significant step in the extension of efficient and reliable electrical supply t... more

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Richland County, SC

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Ric...

Significance: Designed to enable the navigation of the Broad and Congaree Rivers at their confluence in Columbia, the canal was completed in 1824 and enlarged in 1891; the 1891 portion of the canal is the signi... more

Garrison Dam, Powerhouse, 597 Garrison Dam Road, Riverdale, McLean County, ND

Garrison Dam, Powerhouse, 597 Garrison Dam Road, Riverdale, McLean Cou...

Significance: The powerhouse was built to generate electrical power via hydroelectric turbines and generators, using the water impounded in Lake Sakakwea as its energy source. The electricity feeds into the Wes... more

Swan Falls Dam, House, Snake River, Kuna, Ada County, ID

Swan Falls Dam, House, Snake River, Kuna, Ada County, ID

For written descriptive information, see narrative report on Swan Falls Dam, HAER ID-20. Significance: Swan Falls Dam was the first hydroelectric dam on Snake River in Idaho, and one of the earliest built in th... more

Commonwealth Edison Company, Crawford Electrical Generating Station, 3501 South Pulaski Road, Chicago, Cook County, IL

Commonwealth Edison Company, Crawford Electrical Generating Station, 3...

Significance: The buildings of the Crawford Electric Generating Station were designed by the renowned architectural firm of Graham, Anderson, Probst and White; the Crawford Station also reflects the rapid expan... more

Bloede Dam, Spanning Patapsco River, Avalon, Baltimore County, MD

Bloede Dam, Spanning Patapsco River, Avalon, Baltimore County, MD

Significance: In 1907, the Patapsco Electric and Manufacturing Company contracted Ambursen Hydraulic Construction Company to build the Bloede Dam using Nils F. Ambursen's patent. The proposed dam would generate... more

Rocky Mountain Laboratories, Building No. 7, 903 South Fourth Street, north rear, Hamilton, Ravalli County, MT

Rocky Mountain Laboratories, Building No. 7, 903 South Fourth Street, ...

Significance: The Rocky Mountain Laboratories possess national significance due to the pioneering research conducted at these laboratories from 1921-1945 toward the development of vaccines for insect-borne dise... more

Pennsylvania-New Jersey Interconnection Bushkill to Roseland Transmission Line, From Roseland Borough, Essex County, through Morris County and Sussex County to Hardwick Township, Warren County, Roseland, Essex County, NJ

Pennsylvania-New Jersey Interconnection Bushkill to Roseland Transmiss...

Significance: The creation of the 210-mile-long transmission line known as the Pennsylvania-New Jersey Interconnection (PNJ) was a significant step in the extension of efficient and reliable electrical supply t... more

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Richland County, SC

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Ric...

Significance: Designed to enable the navigation of the Broad and Congaree Rivers at their confluence in Columbia, the canal was completed in 1824 and enlarged in 1891; the 1891 portion of the canal is the signi... more

Commonwealth Edison Company, Crawford Electrical Generating Station, 3501 South Pulaski Road, Chicago, Cook County, IL

Commonwealth Edison Company, Crawford Electrical Generating Station, 3...

Significance: The buildings of the Crawford Electric Generating Station were designed by the renowned architectural firm of Graham, Anderson, Probst and White; the Crawford Station also reflects the rapid expan... more

Rocky Mountain Laboratories, Building No. 7, 903 South Fourth Street, north rear, Hamilton, Ravalli County, MT

Rocky Mountain Laboratories, Building No. 7, 903 South Fourth Street, ...

Significance: The Rocky Mountain Laboratories possess national significance due to the pioneering research conducted at these laboratories from 1921-1945 toward the development of vaccines for insect-borne dise... more

Bloede Dam, Spanning Patapsco River, Avalon, Baltimore County, MD

Bloede Dam, Spanning Patapsco River, Avalon, Baltimore County, MD

Significance: In 1907, the Patapsco Electric and Manufacturing Company contracted Ambursen Hydraulic Construction Company to build the Bloede Dam using Nils F. Ambursen's patent. The proposed dam would generate... more

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Richland County, SC

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Ric...

Significance: Designed to enable the navigation of the Broad and Congaree Rivers at their confluence in Columbia, the canal was completed in 1824 and enlarged in 1891; the 1891 portion of the canal is the signi... more

Rocky Mountain Laboratories, Building No. 7, 903 South Fourth Street, north rear, Hamilton, Ravalli County, MT

Rocky Mountain Laboratories, Building No. 7, 903 South Fourth Street, ...

Significance: The Rocky Mountain Laboratories possess national significance due to the pioneering research conducted at these laboratories from 1921-1945 toward the development of vaccines for insect-borne dise... more

Commonwealth Edison Company, Crawford Electrical Generating Station, 3501 South Pulaski Road, Chicago, Cook County, IL

Commonwealth Edison Company, Crawford Electrical Generating Station, 3...

Significance: The buildings of the Crawford Electric Generating Station were designed by the renowned architectural firm of Graham, Anderson, Probst and White; the Crawford Station also reflects the rapid expan... more

Bloede Dam, Spanning Patapsco River, Avalon, Baltimore County, MD

Bloede Dam, Spanning Patapsco River, Avalon, Baltimore County, MD

Significance: In 1907, the Patapsco Electric and Manufacturing Company contracted Ambursen Hydraulic Construction Company to build the Bloede Dam using Nils F. Ambursen's patent. The proposed dam would generate... more

Rocky Mountain Laboratories, Building No. 7, 903 South Fourth Street, north rear, Hamilton, Ravalli County, MT

Rocky Mountain Laboratories, Building No. 7, 903 South Fourth Street, ...

Significance: The Rocky Mountain Laboratories possess national significance due to the pioneering research conducted at these laboratories from 1921-1945 toward the development of vaccines for insect-borne dise... more

Commonwealth Edison Company, Crawford Electrical Generating Station, 3501 South Pulaski Road, Chicago, Cook County, IL

Commonwealth Edison Company, Crawford Electrical Generating Station, 3...

Significance: The buildings of the Crawford Electric Generating Station were designed by the renowned architectural firm of Graham, Anderson, Probst and White; the Crawford Station also reflects the rapid expan... more

Bloede Dam, Spanning Patapsco River, Avalon, Baltimore County, MD

Bloede Dam, Spanning Patapsco River, Avalon, Baltimore County, MD

Significance: In 1907, the Patapsco Electric and Manufacturing Company contracted Ambursen Hydraulic Construction Company to build the Bloede Dam using Nils F. Ambursen's patent. The proposed dam would generate... more

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Richland County, SC

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Ric...

Significance: Designed to enable the navigation of the Broad and Congaree Rivers at their confluence in Columbia, the canal was completed in 1824 and enlarged in 1891; the 1891 portion of the canal is the signi... more

Commonwealth Edison Company, Crawford Electrical Generating Station, 3501 South Pulaski Road, Chicago, Cook County, IL

Commonwealth Edison Company, Crawford Electrical Generating Station, 3...

Significance: The buildings of the Crawford Electric Generating Station were designed by the renowned architectural firm of Graham, Anderson, Probst and White; the Crawford Station also reflects the rapid expan... more

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Richland County, SC

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Ric...

Significance: Designed to enable the navigation of the Broad and Congaree Rivers at their confluence in Columbia, the canal was completed in 1824 and enlarged in 1891; the 1891 portion of the canal is the signi... more

Bloede Dam, Spanning Patapsco River, Avalon, Baltimore County, MD

Bloede Dam, Spanning Patapsco River, Avalon, Baltimore County, MD

Significance: In 1907, the Patapsco Electric and Manufacturing Company contracted Ambursen Hydraulic Construction Company to build the Bloede Dam using Nils F. Ambursen's patent. The proposed dam would generate... more

Rocky Mountain Laboratories, Building No. 7, 903 South Fourth Street, north rear, Hamilton, Ravalli County, MT

Rocky Mountain Laboratories, Building No. 7, 903 South Fourth Street, ...

Significance: The Rocky Mountain Laboratories possess national significance due to the pioneering research conducted at these laboratories from 1921-1945 toward the development of vaccines for insect-borne dise... more

Commonwealth Edison Company, Crawford Electrical Generating Station, 3501 South Pulaski Road, Chicago, Cook County, IL

Commonwealth Edison Company, Crawford Electrical Generating Station, 3...

Significance: The buildings of the Crawford Electric Generating Station were designed by the renowned architectural firm of Graham, Anderson, Probst and White; the Crawford Station also reflects the rapid expan... more

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Richland County, SC

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Ric...

Significance: Designed to enable the navigation of the Broad and Congaree Rivers at their confluence in Columbia, the canal was completed in 1824 and enlarged in 1891; the 1891 portion of the canal is the signi... more

Rocky Mountain Laboratories, Building No. 7, 903 South Fourth Street, north rear, Hamilton, Ravalli County, MT

Rocky Mountain Laboratories, Building No. 7, 903 South Fourth Street, ...

Significance: The Rocky Mountain Laboratories possess national significance due to the pioneering research conducted at these laboratories from 1921-1945 toward the development of vaccines for insect-borne dise... more

Bloede Dam, Spanning Patapsco River, Avalon, Baltimore County, MD

Bloede Dam, Spanning Patapsco River, Avalon, Baltimore County, MD

Significance: In 1907, the Patapsco Electric and Manufacturing Company contracted Ambursen Hydraulic Construction Company to build the Bloede Dam using Nils F. Ambursen's patent. The proposed dam would generate... more

Bloede Dam, Spanning Patapsco River, Avalon, Baltimore County, MD

Bloede Dam, Spanning Patapsco River, Avalon, Baltimore County, MD

Significance: In 1907, the Patapsco Electric and Manufacturing Company contracted Ambursen Hydraulic Construction Company to build the Bloede Dam using Nils F. Ambursen's patent. The proposed dam would generate... more

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Richland County, SC

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Ric...

Significance: Designed to enable the navigation of the Broad and Congaree Rivers at their confluence in Columbia, the canal was completed in 1824 and enlarged in 1891; the 1891 portion of the canal is the signi... more

Commonwealth Edison Company, Crawford Electrical Generating Station, 3501 South Pulaski Road, Chicago, Cook County, IL

Commonwealth Edison Company, Crawford Electrical Generating Station, 3...

Significance: The buildings of the Crawford Electric Generating Station were designed by the renowned architectural firm of Graham, Anderson, Probst and White; the Crawford Station also reflects the rapid expan... more

Rocky Mountain Laboratories, Building No. 7, 903 South Fourth Street, north rear, Hamilton, Ravalli County, MT

Rocky Mountain Laboratories, Building No. 7, 903 South Fourth Street, ...

Significance: The Rocky Mountain Laboratories possess national significance due to the pioneering research conducted at these laboratories from 1921-1945 toward the development of vaccines for insect-borne dise... more

Commonwealth Edison Company, Crawford Electrical Generating Station, 3501 South Pulaski Road, Chicago, Cook County, IL

Commonwealth Edison Company, Crawford Electrical Generating Station, 3...

Significance: The buildings of the Crawford Electric Generating Station were designed by the renowned architectural firm of Graham, Anderson, Probst and White; the Crawford Station also reflects the rapid expan... more

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Richland County, SC

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Ric...

Significance: Designed to enable the navigation of the Broad and Congaree Rivers at their confluence in Columbia, the canal was completed in 1824 and enlarged in 1891; the 1891 portion of the canal is the signi... more

Bloede Dam, Spanning Patapsco River, Avalon, Baltimore County, MD

Bloede Dam, Spanning Patapsco River, Avalon, Baltimore County, MD

Significance: In 1907, the Patapsco Electric and Manufacturing Company contracted Ambursen Hydraulic Construction Company to build the Bloede Dam using Nils F. Ambursen's patent. The proposed dam would generate... more

Rocky Mountain Laboratories, Building No. 7, 903 South Fourth Street, north rear, Hamilton, Ravalli County, MT

Rocky Mountain Laboratories, Building No. 7, 903 South Fourth Street, ...

Significance: The Rocky Mountain Laboratories possess national significance due to the pioneering research conducted at these laboratories from 1921-1945 toward the development of vaccines for insect-borne dise... more

Rocky Mountain Laboratories, Building No. 7, 903 South Fourth Street, north rear, Hamilton, Ravalli County, MT

Rocky Mountain Laboratories, Building No. 7, 903 South Fourth Street, ...

Significance: The Rocky Mountain Laboratories possess national significance due to the pioneering research conducted at these laboratories from 1921-1945 toward the development of vaccines for insect-borne dise... more

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Richland County, SC

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Ric...

Significance: Designed to enable the navigation of the Broad and Congaree Rivers at their confluence in Columbia, the canal was completed in 1824 and enlarged in 1891; the 1891 portion of the canal is the signi... more

Commonwealth Edison Company, Crawford Electrical Generating Station, 3501 South Pulaski Road, Chicago, Cook County, IL

Commonwealth Edison Company, Crawford Electrical Generating Station, 3...

Significance: The buildings of the Crawford Electric Generating Station were designed by the renowned architectural firm of Graham, Anderson, Probst and White; the Crawford Station also reflects the rapid expan... more

Bloede Dam, Spanning Patapsco River, Avalon, Baltimore County, MD

Bloede Dam, Spanning Patapsco River, Avalon, Baltimore County, MD

Significance: In 1907, the Patapsco Electric and Manufacturing Company contracted Ambursen Hydraulic Construction Company to build the Bloede Dam using Nils F. Ambursen's patent. The proposed dam would generate... more

Rocky Mountain Laboratories, Building No. 7, 903 South Fourth Street, north rear, Hamilton, Ravalli County, MT

Rocky Mountain Laboratories, Building No. 7, 903 South Fourth Street, ...

Significance: The Rocky Mountain Laboratories possess national significance due to the pioneering research conducted at these laboratories from 1921-1945 toward the development of vaccines for insect-borne dise... more

Bloede Dam, Spanning Patapsco River, Avalon, Baltimore County, MD

Bloede Dam, Spanning Patapsco River, Avalon, Baltimore County, MD

Significance: In 1907, the Patapsco Electric and Manufacturing Company contracted Ambursen Hydraulic Construction Company to build the Bloede Dam using Nils F. Ambursen's patent. The proposed dam would generate... more

Commonwealth Edison Company, Crawford Electrical Generating Station, 3501 South Pulaski Road, Chicago, Cook County, IL

Commonwealth Edison Company, Crawford Electrical Generating Station, 3...

Significance: The buildings of the Crawford Electric Generating Station were designed by the renowned architectural firm of Graham, Anderson, Probst and White; the Crawford Station also reflects the rapid expan... more

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Richland County, SC

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Ric...

Significance: Designed to enable the navigation of the Broad and Congaree Rivers at their confluence in Columbia, the canal was completed in 1824 and enlarged in 1891; the 1891 portion of the canal is the signi... more

Commonwealth Edison Company, Crawford Electrical Generating Station, 3501 South Pulaski Road, Chicago, Cook County, IL

Commonwealth Edison Company, Crawford Electrical Generating Station, 3...

Significance: The buildings of the Crawford Electric Generating Station were designed by the renowned architectural firm of Graham, Anderson, Probst and White; the Crawford Station also reflects the rapid expan... more

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Richland County, SC

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Ric...

Significance: Designed to enable the navigation of the Broad and Congaree Rivers at their confluence in Columbia, the canal was completed in 1824 and enlarged in 1891; the 1891 portion of the canal is the signi... more

Bloede Dam, Spanning Patapsco River, Avalon, Baltimore County, MD

Bloede Dam, Spanning Patapsco River, Avalon, Baltimore County, MD

Significance: In 1907, the Patapsco Electric and Manufacturing Company contracted Ambursen Hydraulic Construction Company to build the Bloede Dam using Nils F. Ambursen's patent. The proposed dam would generate... more

Rocky Mountain Laboratories, Building No. 7, 903 South Fourth Street, north rear, Hamilton, Ravalli County, MT

Rocky Mountain Laboratories, Building No. 7, 903 South Fourth Street, ...

Significance: The Rocky Mountain Laboratories possess national significance due to the pioneering research conducted at these laboratories from 1921-1945 toward the development of vaccines for insect-borne dise... more

Rocky Mountain Laboratories, Building No. 7, 903 South Fourth Street, north rear, Hamilton, Ravalli County, MT

Rocky Mountain Laboratories, Building No. 7, 903 South Fourth Street, ...

Significance: The Rocky Mountain Laboratories possess national significance due to the pioneering research conducted at these laboratories from 1921-1945 toward the development of vaccines for insect-borne dise... more

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Richland County, SC

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Ric...

Significance: Designed to enable the navigation of the Broad and Congaree Rivers at their confluence in Columbia, the canal was completed in 1824 and enlarged in 1891; the 1891 portion of the canal is the signi... more

Rocky Mountain Laboratories, Building No. 7, 903 South Fourth Street, north rear, Hamilton, Ravalli County, MT

Rocky Mountain Laboratories, Building No. 7, 903 South Fourth Street, ...

Significance: The Rocky Mountain Laboratories possess national significance due to the pioneering research conducted at these laboratories from 1921-1945 toward the development of vaccines for insect-borne dise... more

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Richland County, SC

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Ric...

Significance: Designed to enable the navigation of the Broad and Congaree Rivers at their confluence in Columbia, the canal was completed in 1824 and enlarged in 1891; the 1891 portion of the canal is the signi... more

Rocky Mountain Laboratories, Building No. 7, 903 South Fourth Street, north rear, Hamilton, Ravalli County, MT

Rocky Mountain Laboratories, Building No. 7, 903 South Fourth Street, ...

Significance: The Rocky Mountain Laboratories possess national significance due to the pioneering research conducted at these laboratories from 1921-1945 toward the development of vaccines for insect-borne dise... more

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Richland County, SC

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Ric...

Significance: Designed to enable the navigation of the Broad and Congaree Rivers at their confluence in Columbia, the canal was completed in 1824 and enlarged in 1891; the 1891 portion of the canal is the signi... more

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Richland County, SC

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Ric...

Significance: Designed to enable the navigation of the Broad and Congaree Rivers at their confluence in Columbia, the canal was completed in 1824 and enlarged in 1891; the 1891 portion of the canal is the signi... more

Rocky Mountain Laboratories, Building No. 7, 903 South Fourth Street, north rear, Hamilton, Ravalli County, MT

Rocky Mountain Laboratories, Building No. 7, 903 South Fourth Street, ...

Significance: The Rocky Mountain Laboratories possess national significance due to the pioneering research conducted at these laboratories from 1921-1945 toward the development of vaccines for insect-borne dise... more

Rocky Mountain Laboratories, Building No. 7, 903 South Fourth Street, north rear, Hamilton, Ravalli County, MT

Rocky Mountain Laboratories, Building No. 7, 903 South Fourth Street, ...

Significance: The Rocky Mountain Laboratories possess national significance due to the pioneering research conducted at these laboratories from 1921-1945 toward the development of vaccines for insect-borne dise... more

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Richland County, SC

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Ric...

Significance: Designed to enable the navigation of the Broad and Congaree Rivers at their confluence in Columbia, the canal was completed in 1824 and enlarged in 1891; the 1891 portion of the canal is the signi... more

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Richland County, SC

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Ric...

Significance: Designed to enable the navigation of the Broad and Congaree Rivers at their confluence in Columbia, the canal was completed in 1824 and enlarged in 1891; the 1891 portion of the canal is the signi... more

Rocky Mountain Laboratories, Building No. 7, 903 South Fourth Street, north rear, Hamilton, Ravalli County, MT

Rocky Mountain Laboratories, Building No. 7, 903 South Fourth Street, ...

Significance: The Rocky Mountain Laboratories possess national significance due to the pioneering research conducted at these laboratories from 1921-1945 toward the development of vaccines for insect-borne dise... more

Rocky Mountain Laboratories, Building No. 7, 903 South Fourth Street, north rear, Hamilton, Ravalli County, MT

Rocky Mountain Laboratories, Building No. 7, 903 South Fourth Street, ...

Significance: The Rocky Mountain Laboratories possess national significance due to the pioneering research conducted at these laboratories from 1921-1945 toward the development of vaccines for insect-borne dise... more

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Richland County, SC

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Ric...

Significance: Designed to enable the navigation of the Broad and Congaree Rivers at their confluence in Columbia, the canal was completed in 1824 and enlarged in 1891; the 1891 portion of the canal is the signi... more

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Richland County, SC

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Ric...

Significance: Designed to enable the navigation of the Broad and Congaree Rivers at their confluence in Columbia, the canal was completed in 1824 and enlarged in 1891; the 1891 portion of the canal is the signi... more

Rocky Mountain Laboratories, Building No. 7, 903 South Fourth Street, north rear, Hamilton, Ravalli County, MT

Rocky Mountain Laboratories, Building No. 7, 903 South Fourth Street, ...

Significance: The Rocky Mountain Laboratories possess national significance due to the pioneering research conducted at these laboratories from 1921-1945 toward the development of vaccines for insect-borne dise... more

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Richland County, SC

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Ric...

Significance: Designed to enable the navigation of the Broad and Congaree Rivers at their confluence in Columbia, the canal was completed in 1824 and enlarged in 1891; the 1891 portion of the canal is the signi... more

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Richland County, SC

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Ric...

Significance: Designed to enable the navigation of the Broad and Congaree Rivers at their confluence in Columbia, the canal was completed in 1824 and enlarged in 1891; the 1891 portion of the canal is the signi... more

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Richland County, SC

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Ric...

Significance: Designed to enable the navigation of the Broad and Congaree Rivers at their confluence in Columbia, the canal was completed in 1824 and enlarged in 1891; the 1891 portion of the canal is the signi... more

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Richland County, SC

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Ric...

Significance: Designed to enable the navigation of the Broad and Congaree Rivers at their confluence in Columbia, the canal was completed in 1824 and enlarged in 1891; the 1891 portion of the canal is the signi... more

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Richland County, SC

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Ric...

Significance: Designed to enable the navigation of the Broad and Congaree Rivers at their confluence in Columbia, the canal was completed in 1824 and enlarged in 1891; the 1891 portion of the canal is the signi... more

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Richland County, SC

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Ric...

Significance: Designed to enable the navigation of the Broad and Congaree Rivers at their confluence in Columbia, the canal was completed in 1824 and enlarged in 1891; the 1891 portion of the canal is the signi... more

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Richland County, SC

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Ric...

Significance: Designed to enable the navigation of the Broad and Congaree Rivers at their confluence in Columbia, the canal was completed in 1824 and enlarged in 1891; the 1891 portion of the canal is the signi... more

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Richland County, SC

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Ric...

Significance: Designed to enable the navigation of the Broad and Congaree Rivers at their confluence in Columbia, the canal was completed in 1824 and enlarged in 1891; the 1891 portion of the canal is the signi... more

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Richland County, SC

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Ric...

Significance: Designed to enable the navigation of the Broad and Congaree Rivers at their confluence in Columbia, the canal was completed in 1824 and enlarged in 1891; the 1891 portion of the canal is the signi... more

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Richland County, SC

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Ric...

Significance: Designed to enable the navigation of the Broad and Congaree Rivers at their confluence in Columbia, the canal was completed in 1824 and enlarged in 1891; the 1891 portion of the canal is the signi... more

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Richland County, SC

Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Ric...

Significance: Designed to enable the navigation of the Broad and Congaree Rivers at their confluence in Columbia, the canal was completed in 1824 and enlarged in 1891; the 1891 portion of the canal is the signi... more

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