Colorado River North of Shoshone power plant.

F. C. Angus and Robert Annis at scenic overlook at the at top of Pikes Peak in Colorado.

F.C. Angus and Robert Annis at the top of Pike's Peak.

Fire House at Mesa Verde, Colorado.

Flooded mine at Silverton.

Garden of the Gods.

Garden of the Gods.

Hanging Bridge at Royal Gorge, Colorado.

Black and white lantern slide of a road winding through the Hot Sulphur Springs Canyon in Colorado.

Kiva at Mesa Verde, Colorado.

Black and white lantern slide of old lava flows on Purple Mountain in Colorado.

Locomotive on Pike's Peak.

Black and white lantern slide of a cliff dwelling in Mesa Verde National Park, looking north.

Black and white lantern slide close up view of a cliff dwelling in Mesa Verde National Park.

Black and white lantern slide close up view of a cliff dwelling in Mesa Verde National Park, looking north.

Black and white lantern slide of "Fat Man's Misery" section of the Square Tower House at Mesa Verde National Park.

Black and white lantern slide close up view of a wooden ladder at the Square Tower house at Mesa Verde National Park.

Mesa Verde National Park is located in Montezuma County, Colorado. It was established as a national park on June 29, 1906 to protect the cliff dwellings built by the Anasazi. It was designated a World Heritage Site on September 6, 1978. 16mm film…

Mesa Verde National Park is located in Montezuma County, Colorado. It was established as a national park on June 29, 1906 to protect the cliff dwellings built by the Anasazi. It was designated a World Heritage Site on September 6, 1978. 16mm film…

Near Silverton, Colorado.

Near Wolcott, Colorado.

North of Leadville.

Black and white lantern slide view of Nymph Lake in Rocky Mountain National Park, with mountains rising in the background.

Overlooking Ouray, Colorado.