Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Great Smoky Mountains National Park Roads & Bridges, Clingmans Dome Ro...
Significance: Clingmans Dome Road provides access to Clingmans Dome, the highest point in the Great Smoky Mountains National Park at 6,642'. The road follows the main ridge of the Smokies, offering views into ... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Baltimore-Washington Parkway, Greenbelt, Prince George's County, MD
Significance: The federal section of the Baltimore-Washington Parkway was constructed to provide a dignified entrance to the nation's capital. The parkway also provided a new traffic artery that relieved conge... More
Baltimore-Washington Parkway, Greenbelt, Prince George's County, MD
Significance: The federal section of the Baltimore-Washington Parkway was constructed to provide a dignified entrance to the nation's capital. The parkway also provided a new traffic artery that relieved conge... More
Baltimore-Washington Parkway, Greenbelt, Prince George's County, MD
Significance: The federal section of the Baltimore-Washington Parkway was constructed to provide a dignified entrance to the nation's capital. The parkway also provided a new traffic artery that relieved conge... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Great Smoky Mountains National Park Roads & Bridges, Clingmans Dome Ro...
Significance: Clingmans Dome Road provides access to Clingmans Dome, the highest point in the Great Smoky Mountains National Park at 6,642'. The road follows the main ridge of the Smokies, offering views into ... More
Great Smoky Mountains National Park Roads & Bridges, Clingmans Dome Ro...
Significance: Clingmans Dome Road provides access to Clingmans Dome, the highest point in the Great Smoky Mountains National Park at 6,642'. The road follows the main ridge of the Smokies, offering views into ... More
Dead Indian Canyon Bridge, Spanning Dead Indian Canyon at Cameron Appr...
Significance: Dead Indian Canyon Bridge is significant for its association with the Cameron Approach Road, constructed in 1931-35 as the first modern automotive road linking the south rim of Grand Canyon Nation... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Great Smoky Mountains National Park Roads & Bridges, Clingmans Dome Ro...
Significance: Clingmans Dome Road provides access to Clingmans Dome, the highest point in the Great Smoky Mountains National Park at 6,642'. The road follows the main ridge of the Smokies, offering views into ... More
Great Smoky Mountains National Park Roads & Bridges, Clingmans Dome Ro...
Significance: Clingmans Dome Road provides access to Clingmans Dome, the highest point in the Great Smoky Mountains National Park at 6,642'. The road follows the main ridge of the Smokies, offering views into ... More
Great Smoky Mountains National Park Roads & Bridges, Clingmans Dome Ro...
Significance: Clingmans Dome Road provides access to Clingmans Dome, the highest point in the Great Smoky Mountains National Park at 6,642'. The road follows the main ridge of the Smokies, offering views into ... More
Baltimore-Washington Parkway, Greenbelt, Prince George's County, MD
Significance: The federal section of the Baltimore-Washington Parkway was constructed to provide a dignified entrance to the nation's capital. The parkway also provided a new traffic artery that relieved conge... More
Baltimore-Washington Parkway, Greenbelt, Prince George's County, MD
Significance: The federal section of the Baltimore-Washington Parkway was constructed to provide a dignified entrance to the nation's capital. The parkway also provided a new traffic artery that relieved conge... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Great Smoky Mountains National Park Roads & Bridges, Clingmans Dome Ro...
Significance: Clingmans Dome Road provides access to Clingmans Dome, the highest point in the Great Smoky Mountains National Park at 6,642'. The road follows the main ridge of the Smokies, offering views into ... More
Great Smoky Mountains National Park Roads & Bridges, Clingmans Dome Ro...
Significance: Clingmans Dome Road provides access to Clingmans Dome, the highest point in the Great Smoky Mountains National Park at 6,642'. The road follows the main ridge of the Smokies, offering views into ... More
Great Smoky Mountains National Park Roads & Bridges, Clingmans Dome Ro...
Significance: Clingmans Dome Road provides access to Clingmans Dome, the highest point in the Great Smoky Mountains National Park at 6,642'. The road follows the main ridge of the Smokies, offering views into ... More
Baltimore-Washington Parkway, Greenbelt, Prince George's County, MD
Significance: The federal section of the Baltimore-Washington Parkway was constructed to provide a dignified entrance to the nation's capital. The parkway also provided a new traffic artery that relieved conge... More
Baltimore-Washington Parkway, Greenbelt, Prince George's County, MD
Significance: The federal section of the Baltimore-Washington Parkway was constructed to provide a dignified entrance to the nation's capital. The parkway also provided a new traffic artery that relieved conge... More
Dead Indian Canyon Bridge, Spanning Dead Indian Canyon at Cameron Appr...
Significance: Dead Indian Canyon Bridge is significant for its association with the Cameron Approach Road, constructed in 1931-35 as the first modern automotive road linking the south rim of Grand Canyon Nation... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Dead Indian Canyon Bridge, Spanning Dead Indian Canyon at Cameron Appr...
Significance: Dead Indian Canyon Bridge is significant for its association with the Cameron Approach Road, constructed in 1931-35 as the first modern automotive road linking the south rim of Grand Canyon Nation... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Baltimore-Washington Parkway, Greenbelt, Prince George's County, MD
Significance: The federal section of the Baltimore-Washington Parkway was constructed to provide a dignified entrance to the nation's capital. The parkway also provided a new traffic artery that relieved conge... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Great Smoky Mountains National Park Roads & Bridges, Clingmans Dome Ro...
Significance: Clingmans Dome Road provides access to Clingmans Dome, the highest point in the Great Smoky Mountains National Park at 6,642'. The road follows the main ridge of the Smokies, offering views into ... More
Baltimore-Washington Parkway, Greenbelt, Prince George's County, MD
Significance: The federal section of the Baltimore-Washington Parkway was constructed to provide a dignified entrance to the nation's capital. The parkway also provided a new traffic artery that relieved conge... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Baltimore-Washington Parkway, Greenbelt, Prince George's County, MD
Significance: The federal section of the Baltimore-Washington Parkway was constructed to provide a dignified entrance to the nation's capital. The parkway also provided a new traffic artery that relieved conge... More
Baltimore-Washington Parkway, Greenbelt, Prince George's County, MD
Significance: The federal section of the Baltimore-Washington Parkway was constructed to provide a dignified entrance to the nation's capital. The parkway also provided a new traffic artery that relieved conge... More
Baltimore-Washington Parkway, Greenbelt, Prince George's County, MD
Significance: The federal section of the Baltimore-Washington Parkway was constructed to provide a dignified entrance to the nation's capital. The parkway also provided a new traffic artery that relieved conge... More
Baltimore-Washington Parkway, Greenbelt, Prince George's County, MD
Significance: The federal section of the Baltimore-Washington Parkway was constructed to provide a dignified entrance to the nation's capital. The parkway also provided a new traffic artery that relieved conge... More
Baltimore-Washington Parkway, Greenbelt, Prince George's County, MD
Significance: The federal section of the Baltimore-Washington Parkway was constructed to provide a dignified entrance to the nation's capital. The parkway also provided a new traffic artery that relieved conge... More
Baltimore-Washington Parkway, Greenbelt, Prince George's County, MD
Significance: The federal section of the Baltimore-Washington Parkway was constructed to provide a dignified entrance to the nation's capital. The parkway also provided a new traffic artery that relieved conge... More
Baltimore-Washington Parkway, Greenbelt, Prince George's County, MD
Significance: The federal section of the Baltimore-Washington Parkway was constructed to provide a dignified entrance to the nation's capital. The parkway also provided a new traffic artery that relieved conge... More
Baltimore-Washington Parkway, Greenbelt, Prince George's County, MD
Significance: The federal section of the Baltimore-Washington Parkway was constructed to provide a dignified entrance to the nation's capital. The parkway also provided a new traffic artery that relieved conge... More
Baltimore-Washington Parkway, Greenbelt, Prince George's County, MD
Significance: The federal section of the Baltimore-Washington Parkway was constructed to provide a dignified entrance to the nation's capital. The parkway also provided a new traffic artery that relieved conge... More
Baltimore-Washington Parkway, Greenbelt, Prince George's County, MD
Significance: The federal section of the Baltimore-Washington Parkway was constructed to provide a dignified entrance to the nation's capital. The parkway also provided a new traffic artery that relieved conge... More
Baltimore-Washington Parkway, Greenbelt, Prince George's County, MD
Significance: The federal section of the Baltimore-Washington Parkway was constructed to provide a dignified entrance to the nation's capital. The parkway also provided a new traffic artery that relieved conge... More
Baltimore-Washington Parkway, Greenbelt, Prince George's County, MD
Significance: The federal section of the Baltimore-Washington Parkway was constructed to provide a dignified entrance to the nation's capital. The parkway also provided a new traffic artery that relieved conge... More
Baltimore-Washington Parkway, Greenbelt, Prince George's County, MD
Significance: The federal section of the Baltimore-Washington Parkway was constructed to provide a dignified entrance to the nation's capital. The parkway also provided a new traffic artery that relieved conge... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Baltimore-Washington Parkway, Greenbelt, Prince George's County, MD
Significance: The federal section of the Baltimore-Washington Parkway was constructed to provide a dignified entrance to the nation's capital. The parkway also provided a new traffic artery that relieved conge... More
Baltimore-Washington Parkway, Greenbelt, Prince George's County, MD
Significance: The federal section of the Baltimore-Washington Parkway was constructed to provide a dignified entrance to the nation's capital. The parkway also provided a new traffic artery that relieved conge... More
Baltimore-Washington Parkway, Greenbelt, Prince George's County, MD
Significance: The federal section of the Baltimore-Washington Parkway was constructed to provide a dignified entrance to the nation's capital. The parkway also provided a new traffic artery that relieved conge... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Baltimore-Washington Parkway, Greenbelt, Prince George's County, MD
Significance: The federal section of the Baltimore-Washington Parkway was constructed to provide a dignified entrance to the nation's capital. The parkway also provided a new traffic artery that relieved conge... More
Baltimore-Washington Parkway, Greenbelt, Prince George's County, MD
Significance: The federal section of the Baltimore-Washington Parkway was constructed to provide a dignified entrance to the nation's capital. The parkway also provided a new traffic artery that relieved conge... More
Baltimore-Washington Parkway, Greenbelt, Prince George's County, MD
Significance: The federal section of the Baltimore-Washington Parkway was constructed to provide a dignified entrance to the nation's capital. The parkway also provided a new traffic artery that relieved conge... More
Wind Cave Roads & Bridges, Hot Springs, Fall River County, SD
Significance: The Wind Cave National Park road system reflects the combined efforts of the National Park Service, the South Dakota State Highway Commission, and the Bureau of Public Roads to provide vehicular a... More
Baltimore-Washington Parkway, Greenbelt, Prince George's County, MD
Significance: The federal section of the Baltimore-Washington Parkway was constructed to provide a dignified entrance to the nation's capital. The parkway also provided a new traffic artery that relieved conge... More
Baltimore-Washington Parkway, Greenbelt, Prince George's County, MD
Significance: The federal section of the Baltimore-Washington Parkway was constructed to provide a dignified entrance to the nation's capital. The parkway also provided a new traffic artery that relieved conge... More
Baltimore-Washington Parkway, Greenbelt, Prince George's County, MD
Significance: The federal section of the Baltimore-Washington Parkway was constructed to provide a dignified entrance to the nation's capital. The parkway also provided a new traffic artery that relieved conge... More
Baltimore-Washington Parkway, Greenbelt, Prince George's County, MD
Significance: The federal section of the Baltimore-Washington Parkway was constructed to provide a dignified entrance to the nation's capital. The parkway also provided a new traffic artery that relieved conge... More