- Ridge above Barker Pass, Yosemite National Park1
- Ridge above Inverness1
- Ridge above Parker Pass, Yosemite National Park1
- Ridge along shaded gully about 2 miles east of Pt. Reyes Station1
- Ridge from Sonora Pass to Leavitt Peak, Sierra Nevadas1
- Ridge from Sonora Pass to Leavitt Pk.1
- Ridge in Santa Lucia Mts. ca. 2 mi. NW of Cuesta Pass near TV transmitted tower1
- Ridge overlooking tributary of Cañada de los Alamos, 6.3 miles SE of Gosman, State Route Highway 991
- Riparian Woodland1
- Riverside43
- Road 2 mi. East of Paradise Valley (East of National City, San Diego Co., Calif), South slope near top of mesa1
- Road between lake Pilarcitos and Lake San Andres1
- Road to Jensen, Ranch near Healdsburg1
- Roadbank opposite Camp Tomales1
- Roadbank, opposite Camp Tomales1
- Roadside bank by Richmond Ferry approach1
- Roadside bank near Richmond Ferry approach1
- Roberts Ranch, Wyman Creek, White Mountains1
- Rock Creek Canyon2
- Rock Creek Lake Basin1