Black and white photograph of a tower on Pikes Peak. Several people can be seen standing next to railroad tracks in the foreground.

Black and white photograph, taken by Robert Merrill, looking southeast toward lakes. Likely taken near Pikes Peak, Colorado.

Black and white photograph, taken by Robert Merrill, looking southwest toward Cripple Creek, Colorado.

Field notes from trips to Colorado and Nebraska to assess programs supported by W.K. Kellogg.

Black and white photograph of rocks at Point Sublime, taken by Robert Merrill from a stationary train.

Black and white photograph of rocky landscape at Clyde. The front engine of a train is visible at the lower right edge of the photograph.

Delta from side creek at road blockade between Salida and Denver, Colorado. In the foreground, two automobiles are parked on the roadway, and in the distance behind a small hill the top of a steam locomotive is visible.

Black and white photograph of a woman standing in a rocky gorge.

Black and white photograph of plane landscape toward Colorado Springs, Colorado. Taken by Robert Merrill from a moving train.

Black and white photograph of the Pikes Peak summit at a twenty-five percent grade above the timber line.

Black and white photograph of the Pikes Peak summit from the timber line.

Black and white photograph of mines at Goldfield, Colorado. Taken by Robert Merrill from a stationary train.