Collection place
- Yolo County, California3,988
- Yolo, Yolo County, California1
- Yonezawa, Yamagata Prefecture, South Tohoku3
- Yonne, Burgundy, France1
- Yontocket (Burnt Ranch), Del Norte County, California7
- York Ranch, Greenlee County, Arizona12
- York, England2
- Yorkshire and the Humber, England9
- Yosemite National Park, California144
- Yosemite Valley (CDP), Yosemite National Park, Mariposa County13
- Yosemite Valley, Yosemite National Park, Mariposa County29
- Yosemite Village, Yosemite Valley, Yosemite National Park2
- Yosemite, Mariposa County, California132
- Yosemite, Tuolumne County, California21
- Yountville area, Napa Valley, Napa County255
- Yountville, Napa Valley, Napa County8
- Ypres, West Flanders, Belgium20
- Yreka, Siskiyou County, California12
- Yuat River Tributary, Sepik River, Papua New Guinea2
- Yuba City, Sutter County, California3