City of Boulder:
Close up view of Red Rocks (c. 1943).
City of Boulder:
View of western boulder (1895-1902).
City of Boulder:
Silver Lake Ditch flume below Red Rocks (1900-1920).
City of Boulder:
A group posed above Sunshine Canyon (1897-1910).
City of Boulder:
"The Big 5 Club", Sunshine Canyon in the Background (1897).
City of Boulder:
View of the Sunshine canyon entrance and the Silver Lake Ditch (c. 1900).
City of Boulder:
View of the nearly Completed Boulder Sanitarium (1895).
City of Boulder:
The former Sanitas Dairy Barn at the site of the Sanitarium (1930).
City of Boulder:
Silver Lake Ditch flume construction (c. 1888).
City of Boulder:
Sanitarium patients attended to by nurses (1895-1930).
City of Boulder:
Dakota Ridge Stone Arch (2012)
City of Boulder:
Close up view of Red Rocks (2016).
City of Boulder:
Overview of Red Rocks from Flagstaff Mountain (c. 1905).
City of Boulder:
Overview of Red Rocks from Flagstaff Mountain (2016).
City of Boulder:
Sunshine Canyon and Mount Sanitas
City of Boulder:
Mt. Sanitas, Red Rock, and an unknown structure (1909-1925).
City of Boulder:
Man on rock overlooking Boulder From Mt. Sanitas (1908).
City of Boulder:
Runners on the Dakota Ridge Trail (1980).
City of Boulder:
Boulder Memorial Hospital
City of Boulder:
Boulder Community Hospital circa
City of Boulder:
Historic photo of hiker at Sanitas
City of Boulder:
Boulder Sanitarium post card