Keywords: highway construction highwayconstruction west virginia westvirginia united states unitedstates outdoor monochrome An engineer working to survey Rocky Mountain National Park's new road along Trail Ridge, 1930. National Park Service photograph by George A. Grant; card mount number 107; label number 139. An engineer working to survey Rocky Mountain National Park's new road along Trail Ridge, 1930. National Park Service photograph by George A. Grant; card mount number 107; label number 139. |