York Bridge, Federal Aid Secondary Route 280, Helena, Lewis and Clark ...
Significance: As a pin-connected Pennsylvania through truss structure, the bridge is not particularly significant for structural or engineering reasons. It is however, historically associated with the Helena Po... More
York Bridge, Federal Aid Secondary Route 280, Helena, Lewis and Clark ...
Significance: As a pin-connected Pennsylvania through truss structure, the bridge is not particularly significant for structural or engineering reasons. It is however, historically associated with the Helena Po... More
Victor Bridge, Spanning Bitterroot River, Victor, Ravalli County, MT
Significance: The bridge is a pin-connected Pratt through truss main span connected by two 20' wood stringer span approaches. It is one of three remaining bridges of its vintage built by O.E. Peppard, a noted a... More
Old Steel Bridge, Spanning Flathead River on Steel Bridge Road, Kalisp...
Significance: The Flathead River Bridge was the first large steel bridge constructed in northwestern Montana. As with many other late 19th century bridges, it replaces an earlier ferry operation. When complet... More
Old Steel Bridge, Spanning Flathead River on Steel Bridge Road, Kalisp...
Significance: The Flathead River Bridge was the first large steel bridge constructed in northwestern Montana. As with many other late 19th century bridges, it replaces an earlier ferry operation. When complet... More
Old Steel Bridge, Spanning Flathead River on Steel Bridge Road, Kalisp...
Significance: The Flathead River Bridge was the first large steel bridge constructed in northwestern Montana. As with many other late 19th century bridges, it replaces an earlier ferry operation. When complet... More
Snowden Bridge, Spanning Missouri River, Nohly, Richland County, MT
Survey number: HAER MT-27 Building/structure dates: 1913 Initial Construction Building/structure dates: 1925 Subsequent Work
Fort Benton Bridge, Spanning Missouri River, Fort Benton, Chouteau Cou...
Significance: Fort Benton has a long history in Montana. It was s fur trading post before the formation of Montana territory. In order to hold the town's trade with the Judith Basin to the east from other compe... More
Dearborn River High Bridge, Spanning Dearborn River, Augusta, Lewis an...
Significance: The King Bridge Company of Cleveland, Ohio constructed this four-span, half-deck Pratt truss over the Dearborn River in 1897. The half-deck configuration of the bridge is unusual in that the floor... More
Main Channel Bridge, Spanning Clark Fork, Thompson Falls, Sanders Coun...
Survey number: HAER MT-28 Building/structure dates: 1911 Initial Construction
Springdale Bridge, Federal Aid Secondary Route 563, Springdale, Park C...
Significance: The bridge is significant for its associations with the development of transportation systems to accommodate settlement and tourism in the early 20th century; and as an example of the work of the ... More
Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mo...
Significance: The Standard mill is significant as an intact example of the "model California stamp mill" that developed from the flowering of nineteenth-century developments in mining and milling technologies i... More
Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mo...
Significance: The Standard mill is significant as an intact example of the "model California stamp mill" that developed from the flowering of nineteenth-century developments in mining and milling technologies i... More
Kinsey Bridge, Spanning Yellowstone River, Miles City, Custer County, ...
Significance: In 1907-08 a new transcontinental railroad was built throughout Montana. The railroad, the Chicago, Milwaukee, St. Paul & Pacific, runs along the north bank of the Yellowstone for about 80 miles b... More
Boise Project, Deer Flat Embankments, Lake Lowell, Nampa, Canyon Count...
Significance: The Deer Flat Embankments, which impound Lake Lowell, are significant as the first large storage feature built by the U.S. Reclamation Service on the Boise Project, one of the largest of the early... More
Rosie the Riveter National Historical Park, Ford Assembly Plant, 1400 ...
Significance: The Ford Assembly Plant is historically significant because of its association with several individuals and historical developments important to the history of the United States, especially the mo... More
Rosie the Riveter National Historical Park, Ford Assembly Plant, 1400 ...
Significance: The Ford Assembly Plant is historically significant because of its association with several individuals and historical developments important to the history of the United States, especially the mo... More
Rosie the Riveter National Historical Park, Ford Assembly Plant, 1400 ...
Significance: The Ford Assembly Plant is historically significant because of its association with several individuals and historical developments important to the history of the United States, especially the mo... More
Snowden Bridge, Spanning Missouri River, Nohly, Richland County, MT
Survey number: HAER MT-27 Building/structure dates: 1913 Initial Construction Building/structure dates: 1925 Subsequent Work
Snowden Bridge, Spanning Missouri River, Nohly, Richland County, MT
Survey number: HAER MT-27 Building/structure dates: 1913 Initial Construction Building/structure dates: 1925 Subsequent Work
Snowden Bridge, Spanning Missouri River, Nohly, Richland County, MT
Survey number: HAER MT-27 Building/structure dates: 1913 Initial Construction Building/structure dates: 1925 Subsequent Work
Fort Benton Bridge, Spanning Missouri River, Fort Benton, Chouteau Cou...
Significance: Fort Benton has a long history in Montana. It was s fur trading post before the formation of Montana territory. In order to hold the town's trade with the Judith Basin to the east from other compe... More
Fort Benton Bridge, Spanning Missouri River, Fort Benton, Chouteau Cou...
Significance: Fort Benton has a long history in Montana. It was s fur trading post before the formation of Montana territory. In order to hold the town's trade with the Judith Basin to the east from other compe... More
Dearborn River High Bridge, Spanning Dearborn River, Augusta, Lewis an...
Significance: The King Bridge Company of Cleveland, Ohio constructed this four-span, half-deck Pratt truss over the Dearborn River in 1897. The half-deck configuration of the bridge is unusual in that the floor... More
Roundup Bridge, Spanning Musselshell River, Roundup, Musselshell Count...
Survey number: HAER MT-25 Building/structure dates: 1894 Building/structure dates: 1911
Roundup Bridge, Spanning Musselshell River, Roundup, Musselshell Count...
Survey number: HAER MT-25 Building/structure dates: 1894 Building/structure dates: 1911
Rosie the Riveter National Historical Park, Richmond Shipyard No. 3, P...
Photographs were taken while shooting the SS WAPAMA which was moored in Graving Dock No. 3. STORED OFF SITE AND ON SITE. mchr Significance: Henry J. Kaiser's enterprise built and operated four shipyards at Rich... More
Rosie the Riveter National Historical Park, Richmond Shipyard No. 3, P...
Photographs were taken while shooting the SS WAPAMA which was moored in Graving Dock No. 3. STORED OFF SITE AND ON SITE. mchr Significance: Henry J. Kaiser's enterprise built and operated four shipyards at Rich... More
Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mo...
Significance: The Standard mill is significant as an intact example of the "model California stamp mill" that developed from the flowering of nineteenth-century developments in mining and milling technologies i... More
Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mo...
Significance: The Standard mill is significant as an intact example of the "model California stamp mill" that developed from the flowering of nineteenth-century developments in mining and milling technologies i... More
Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mo...
Significance: The Standard mill is significant as an intact example of the "model California stamp mill" that developed from the flowering of nineteenth-century developments in mining and milling technologies i... More
Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mo...
Significance: The Standard mill is significant as an intact example of the "model California stamp mill" that developed from the flowering of nineteenth-century developments in mining and milling technologies i... More
Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mo...
Significance: The Standard mill is significant as an intact example of the "model California stamp mill" that developed from the flowering of nineteenth-century developments in mining and milling technologies i... More
Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mo...
Significance: The Standard mill is significant as an intact example of the "model California stamp mill" that developed from the flowering of nineteenth-century developments in mining and milling technologies i... More
Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mo...
Significance: The Standard mill is significant as an intact example of the "model California stamp mill" that developed from the flowering of nineteenth-century developments in mining and milling technologies i... More
Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mo...
Significance: The Standard mill is significant as an intact example of the "model California stamp mill" that developed from the flowering of nineteenth-century developments in mining and milling technologies i... More
Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mo...
Significance: The Standard mill is significant as an intact example of the "model California stamp mill" that developed from the flowering of nineteenth-century developments in mining and milling technologies i... More
Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mo...
Significance: The Standard mill is significant as an intact example of the "model California stamp mill" that developed from the flowering of nineteenth-century developments in mining and milling technologies i... More
Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mo...
Significance: The Standard mill is significant as an intact example of the "model California stamp mill" that developed from the flowering of nineteenth-century developments in mining and milling technologies i... More
Judith River Bridge, Spanning Judith River, Moore, Fergus County, MT
Significance: Fergus County, around the turn of the 20th century, was a rapidly growing agricultural area, especially for wheat production. The Judith Basin was the most bountiful section of the county, if not ... More
Boise Project, Deer Flat Embankments, Lake Lowell, Nampa, Canyon Count...
Significance: The Deer Flat Embankments, which impound Lake Lowell, are significant as the first large storage feature built by the U.S. Reclamation Service on the Boise Project, one of the largest of the early... More
Boise Project, Deer Flat Embankments, Lake Lowell, Nampa, Canyon Count...
Significance: The Deer Flat Embankments, which impound Lake Lowell, are significant as the first large storage feature built by the U.S. Reclamation Service on the Boise Project, one of the largest of the early... More
Boise Project, Deer Flat Embankments, Lake Lowell, Nampa, Canyon Count...
Significance: The Deer Flat Embankments, which impound Lake Lowell, are significant as the first large storage feature built by the U.S. Reclamation Service on the Boise Project, one of the largest of the early... More
York Bridge, Federal Aid Secondary Route 280, Helena, Lewis and Clark ...
Significance: As a pin-connected Pennsylvania through truss structure, the bridge is not particularly significant for structural or engineering reasons. It is however, historically associated with the Helena Po... More
York Bridge, Federal Aid Secondary Route 280, Helena, Lewis and Clark ...
Significance: As a pin-connected Pennsylvania through truss structure, the bridge is not particularly significant for structural or engineering reasons. It is however, historically associated with the Helena Po... More
Victor Bridge, Spanning Bitterroot River, Victor, Ravalli County, MT
Significance: The bridge is a pin-connected Pratt through truss main span connected by two 20' wood stringer span approaches. It is one of three remaining bridges of its vintage built by O.E. Peppard, a noted a... More
Old Steel Bridge, Spanning Flathead River on Steel Bridge Road, Kalisp...
Significance: The Flathead River Bridge was the first large steel bridge constructed in northwestern Montana. As with many other late 19th century bridges, it replaces an earlier ferry operation. When complet... More
Snowden Bridge, Spanning Missouri River, Nohly, Richland County, MT
Survey number: HAER MT-27 Building/structure dates: 1913 Initial Construction Building/structure dates: 1925 Subsequent Work
Fort Benton Bridge, Spanning Missouri River, Fort Benton, Chouteau Cou...
Significance: Fort Benton has a long history in Montana. It was s fur trading post before the formation of Montana territory. In order to hold the town's trade with the Judith Basin to the east from other compe... More
Dearborn River High Bridge, Spanning Dearborn River, Augusta, Lewis an...
Significance: The King Bridge Company of Cleveland, Ohio constructed this four-span, half-deck Pratt truss over the Dearborn River in 1897. The half-deck configuration of the bridge is unusual in that the floor... More
Springdale Bridge, Federal Aid Secondary Route 563, Springdale, Park C...
Significance: The bridge is significant for its associations with the development of transportation systems to accommodate settlement and tourism in the early 20th century; and as an example of the work of the ... More
Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mo...
Significance: The Standard mill is significant as an intact example of the "model California stamp mill" that developed from the flowering of nineteenth-century developments in mining and milling technologies i... More
Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mo...
Significance: The Standard mill is significant as an intact example of the "model California stamp mill" that developed from the flowering of nineteenth-century developments in mining and milling technologies i... More
Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mo...
Significance: The Standard mill is significant as an intact example of the "model California stamp mill" that developed from the flowering of nineteenth-century developments in mining and milling technologies i... More
Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mo...
Significance: The Standard mill is significant as an intact example of the "model California stamp mill" that developed from the flowering of nineteenth-century developments in mining and milling technologies i... More
Wolf Creek Bridge, Spanning Missouri River, Craig, Lewis and Clark Cou...
Significance: Located on the Recreation Road south of Craig, it was erected in 1933 by W.P. Roscoe Co. of Billings. The bridge was the first continuous steel truss bridge built in Montana. Following its constru... More
Judith River Bridge, Spanning Judith River, Moore, Fergus County, MT
Significance: Fergus County, around the turn of the 20th century, was a rapidly growing agricultural area, especially for wheat production. The Judith Basin was the most bountiful section of the county, if not ... More
Fromberg Bridge, Spanning Clark's Fork of Yellowstone River on East Ri...
Significance: The first and only multi-span monumental reinforced concrete arch bridge built in Montana, the bridge facilitated the transportation of agricultural products (especially sugar beets) from the east... More
Boise Project, Deer Flat Embankments, Lake Lowell, Nampa, Canyon Count...
Significance: The Deer Flat Embankments, which impound Lake Lowell, are significant as the first large storage feature built by the U.S. Reclamation Service on the Boise Project, one of the largest of the early... More
Boise Project, Deer Flat Embankments, Lake Lowell, Nampa, Canyon Count...
Significance: The Deer Flat Embankments, which impound Lake Lowell, are significant as the first large storage feature built by the U.S. Reclamation Service on the Boise Project, one of the largest of the early... More
Boise Project, Deer Flat Embankments, Lake Lowell, Nampa, Canyon Count...
Significance: The Deer Flat Embankments, which impound Lake Lowell, are significant as the first large storage feature built by the U.S. Reclamation Service on the Boise Project, one of the largest of the early... More
Boise Project, Deer Flat Embankments, Lake Lowell, Nampa, Canyon Count...
Significance: The Deer Flat Embankments, which impound Lake Lowell, are significant as the first large storage feature built by the U.S. Reclamation Service on the Boise Project, one of the largest of the early... More
Boise Project, Deer Flat Embankments, Lake Lowell, Nampa, Canyon Count...
Significance: The Deer Flat Embankments, which impound Lake Lowell, are significant as the first large storage feature built by the U.S. Reclamation Service on the Boise Project, one of the largest of the early... More
York Bridge, Federal Aid Secondary Route 280, Helena, Lewis and Clark ...
Significance: As a pin-connected Pennsylvania through truss structure, the bridge is not particularly significant for structural or engineering reasons. It is however, historically associated with the Helena Po... More
Victor Bridge, Spanning Bitterroot River, Victor, Ravalli County, MT
Significance: The bridge is a pin-connected Pratt through truss main span connected by two 20' wood stringer span approaches. It is one of three remaining bridges of its vintage built by O.E. Peppard, a noted a... More
Snowden Bridge, Spanning Missouri River, Nohly, Richland County, MT
Survey number: HAER MT-27 Building/structure dates: 1913 Initial Construction Building/structure dates: 1925 Subsequent Work
Fort Benton Bridge, Spanning Missouri River, Fort Benton, Chouteau Cou...
Significance: Fort Benton has a long history in Montana. It was s fur trading post before the formation of Montana territory. In order to hold the town's trade with the Judith Basin to the east from other compe... More
Dearborn River High Bridge, Spanning Dearborn River, Augusta, Lewis an...
Significance: The King Bridge Company of Cleveland, Ohio constructed this four-span, half-deck Pratt truss over the Dearborn River in 1897. The half-deck configuration of the bridge is unusual in that the floor... More
Dearborn River High Bridge, Spanning Dearborn River, Augusta, Lewis an...
Significance: The King Bridge Company of Cleveland, Ohio constructed this four-span, half-deck Pratt truss over the Dearborn River in 1897. The half-deck configuration of the bridge is unusual in that the floor... More
Roundup Bridge, Spanning Musselshell River, Roundup, Musselshell Count...
Survey number: HAER MT-25 Building/structure dates: 1894 Building/structure dates: 1911
Rosie the Riveter National Historical Park, Richmond Shipyard No. 3, P...
Photographs were taken while shooting the SS WAPAMA which was moored in Graving Dock No. 3. STORED OFF SITE AND ON SITE. mchr Significance: Henry J. Kaiser's enterprise built and operated four shipyards at Rich... More
Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mo...
Significance: The Standard mill is significant as an intact example of the "model California stamp mill" that developed from the flowering of nineteenth-century developments in mining and milling technologies i... More
Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mo...
Significance: The Standard mill is significant as an intact example of the "model California stamp mill" that developed from the flowering of nineteenth-century developments in mining and milling technologies i... More
Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mo...
Significance: The Standard mill is significant as an intact example of the "model California stamp mill" that developed from the flowering of nineteenth-century developments in mining and milling technologies i... More
Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mo...
Significance: The Standard mill is significant as an intact example of the "model California stamp mill" that developed from the flowering of nineteenth-century developments in mining and milling technologies i... More
Boise Project, Deer Flat Embankments, Lake Lowell, Nampa, Canyon Count...
Significance: The Deer Flat Embankments, which impound Lake Lowell, are significant as the first large storage feature built by the U.S. Reclamation Service on the Boise Project, one of the largest of the early... More
Boise Project, Deer Flat Embankments, Lake Lowell, Nampa, Canyon Count...
Significance: The Deer Flat Embankments, which impound Lake Lowell, are significant as the first large storage feature built by the U.S. Reclamation Service on the Boise Project, one of the largest of the early... More
Boise Project, Deer Flat Embankments, Lake Lowell, Nampa, Canyon Count...
Significance: The Deer Flat Embankments, which impound Lake Lowell, are significant as the first large storage feature built by the U.S. Reclamation Service on the Boise Project, one of the largest of the early... More
Boise Project, Deer Flat Embankments, Lake Lowell, Nampa, Canyon Count...
Significance: The Deer Flat Embankments, which impound Lake Lowell, are significant as the first large storage feature built by the U.S. Reclamation Service on the Boise Project, one of the largest of the early... More
Victor Bridge, Spanning Bitterroot River, Victor, Ravalli County, MT
Significance: The bridge is a pin-connected Pratt through truss main span connected by two 20' wood stringer span approaches. It is one of three remaining bridges of its vintage built by O.E. Peppard, a noted a... More
Victor Bridge, Spanning Bitterroot River, Victor, Ravalli County, MT
Significance: The bridge is a pin-connected Pratt through truss main span connected by two 20' wood stringer span approaches. It is one of three remaining bridges of its vintage built by O.E. Peppard, a noted a... More
Old Steel Bridge, Spanning Flathead River on Steel Bridge Road, Kalisp...
Significance: The Flathead River Bridge was the first large steel bridge constructed in northwestern Montana. As with many other late 19th century bridges, it replaces an earlier ferry operation. When complet... More
Old Steel Bridge, Spanning Flathead River on Steel Bridge Road, Kalisp...
Significance: The Flathead River Bridge was the first large steel bridge constructed in northwestern Montana. As with many other late 19th century bridges, it replaces an earlier ferry operation. When complet... More
Snowden Bridge, Spanning Missouri River, Nohly, Richland County, MT
Survey number: HAER MT-27 Building/structure dates: 1913 Initial Construction Building/structure dates: 1925 Subsequent Work
Snowden Bridge, Spanning Missouri River, Nohly, Richland County, MT
Survey number: HAER MT-27 Building/structure dates: 1913 Initial Construction Building/structure dates: 1925 Subsequent Work
Fort Benton Bridge, Spanning Missouri River, Fort Benton, Chouteau Cou...
Significance: Fort Benton has a long history in Montana. It was s fur trading post before the formation of Montana territory. In order to hold the town's trade with the Judith Basin to the east from other compe... More
Fort Benton Bridge, Spanning Missouri River, Fort Benton, Chouteau Cou...
Significance: Fort Benton has a long history in Montana. It was s fur trading post before the formation of Montana territory. In order to hold the town's trade with the Judith Basin to the east from other compe... More
Dearborn River High Bridge, Spanning Dearborn River, Augusta, Lewis an...
Significance: The King Bridge Company of Cleveland, Ohio constructed this four-span, half-deck Pratt truss over the Dearborn River in 1897. The half-deck configuration of the bridge is unusual in that the floor... More
Main Channel Bridge, Spanning Clark Fork, Thompson Falls, Sanders Coun...
Survey number: HAER MT-28 Building/structure dates: 1911 Initial Construction
Main Channel Bridge, Spanning Clark Fork, Thompson Falls, Sanders Coun...
Survey number: HAER MT-28 Building/structure dates: 1911 Initial Construction
Springdale Bridge, Federal Aid Secondary Route 563, Springdale, Park C...
Significance: The bridge is significant for its associations with the development of transportation systems to accommodate settlement and tourism in the early 20th century; and as an example of the work of the ... More
Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mo...
Significance: The Standard mill is significant as an intact example of the "model California stamp mill" that developed from the flowering of nineteenth-century developments in mining and milling technologies i... More
Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mo...
Significance: The Standard mill is significant as an intact example of the "model California stamp mill" that developed from the flowering of nineteenth-century developments in mining and milling technologies i... More
Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mo...
Significance: The Standard mill is significant as an intact example of the "model California stamp mill" that developed from the flowering of nineteenth-century developments in mining and milling technologies i... More
Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mo...
Significance: The Standard mill is significant as an intact example of the "model California stamp mill" that developed from the flowering of nineteenth-century developments in mining and milling technologies i... More
Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mo...
Significance: The Standard mill is significant as an intact example of the "model California stamp mill" that developed from the flowering of nineteenth-century developments in mining and milling technologies i... More
Wolf Creek Bridge, Spanning Missouri River, Craig, Lewis and Clark Cou...
Significance: Located on the Recreation Road south of Craig, it was erected in 1933 by W.P. Roscoe Co. of Billings. The bridge was the first continuous steel truss bridge built in Montana. Following its constru... More
Boise Project, Deer Flat Embankments, Lake Lowell, Nampa, Canyon Count...
Significance: The Deer Flat Embankments, which impound Lake Lowell, are significant as the first large storage feature built by the U.S. Reclamation Service on the Boise Project, one of the largest of the early... More
Boise Project, Deer Flat Embankments, Lake Lowell, Nampa, Canyon Count...
Significance: The Deer Flat Embankments, which impound Lake Lowell, are significant as the first large storage feature built by the U.S. Reclamation Service on the Boise Project, one of the largest of the early... More
Boise Project, Deer Flat Embankments, Lake Lowell, Nampa, Canyon Count...
Significance: The Deer Flat Embankments, which impound Lake Lowell, are significant as the first large storage feature built by the U.S. Reclamation Service on the Boise Project, one of the largest of the early... More