topic

• Canyons2
• Rock formations1

name

collection

• Robert N. Dennis collection of stereoscopic views4

place

• Colorado4
• Monument (Colo.)1
• Pikes Peak (Colo.)1
• Williams Canyon (Colo.)1

genre

• Photographs4
• Stereographs4

division

• Wallach Division: Photography Collection4

type

• still image4