City of Boulder: One of the entrances to Chapman Drive (1930-1940).
City of Boulder: CCC workers at Chapman Drive with a rock drill (1933-1935).
City of Boulder: Chapman Drive
City of Boulder: Chapman Drive Cattle Guard
City of Boulder: Overview of Green Mountain Lodge (1935-1940).
City of Boulder: Overview of Green Mountain Lodge (2007).
City of Boulder: Overview of Green Mountain Lodge (1964).
City of Boulder: Green Mountain Lodge
City of Boulder: CCC stonework leading up to Morse Well (1933-1935).
City of Boulder: Overview of the Halfway House (1930-1950).
City of Boulder: Boulder City Improvement Association workers on Flagstaff road (c. 1920).
City of Boulder: Overview of Flagstaff Road (c. 1920).
City of Boulder: Overview of Sunrise Circle Amphitheater, close to completion (1933-1935).
City of Boulder: Historic photo of the Amphitheater in the 1930's
City of Boulder: Ranger Martin Parsons at the Flagstaff Mountain flagpole (1937).
City of Boulder: Flagstaff Shelter House in winter (1933).
City of Boulder: Flagstaff Shelter House
City of Boulder: Stone Shelter
City of Boulder: View of the former Stone Shelter on Flagstaff Mountain (1920).
City of Boulder: Silver Lake Ditch flume below Red Rocks (1900-1920).
City of Boulder: 208-4-20photo_2
City of Boulder: View of the Sunshine canyon entrance and the Silver Lake Ditch (c. 1900).
City of Boulder: Silver Lake Ditch flume construction (c. 1888).
City of Boulder: Dakota Ridge Stone Arch (2012)
City of Boulder: Sanitas Stone Shelter
City of Boulder: Stone bridge over Silver Lake Ditch
City of Boulder: Historic photo of Boulder Sanitarium Cottages
City of Boulder: View of the nearly Completed Boulder Sanitarium (1895).
City of Boulder: Boulder Community Hospital circa
City of Boulder: Boulder Memorial Hospital