topic

• Expeditions & surveys4
• Rock formations1

name

• Jackson, William Henry, 1843-194226
• Union Pacific Railroad Company21
• Geographical Surveys West of the 100th Meridian (U.S.)4

collection

• Robert N. Dennis collection of stereoscopic views26

place

• Utah21
• United States4
• Colorado3
• Monument Park (El Paso County, Colo.)2

genre

• Photographs26
• Stereographs26

publisher

division

• Wallach Division: Photography Collection26

type

• still image26