topic

• Artists at work2
• Rock formations1

name

• Underwood & Underwood2

collection

• Robert N. Dennis collection of stereoscopic views2

place

• Arizona2
• Canyons2
• Grand Canyon (Ariz.)2
• United States2

genre

• Photographs2
• Stereographs2

publisher

division

• Wallach Division: Photography Collection2

type

• still image2