Soil survey of Trinity County, California, Weaverville area /

by Howell, David W.
[Washington, D.C.?] : The Service, 1998

Soil survey of Mendocino County, California, western part /

by Rittiman, Carl A.
[Washington, D.C.?] : The Service, 2002

Soil survey of Benton-Owens Valley area, California, parts of Inyo and Mono counties /

by Tallyn, Edwin F.
[Washington, D.C.] : U.S. Dept. of Agriculture, Natural Resources Conservation Service, 2002

Soil survey of Intermountain Area, California : parts of Lassen, Modoc, Shasta, and Siskiyou Counties /

by Ferrari, Charles A.
[Washington, D.C.] : Natural Resources Conservation Service, 2003

Soil survey of Stanislaus County, California, western part /

[Washington, D.C.?] : Natural Resources Conservation Service, 2002

Soil survey of Yuba County, California /

[Washington, D.C.] : The Service, 1998

Soil survey of Tulare County, California, western part /

by Wasner, Alan R.
[Washington, D.C.?] : Natural Resources Conservation Service, 2003

Soil survey of Susanville area, parts of Lassen and Plumas counties, California /

by Borchard, Steven J.
[Washington, D.C.] : Natural Resources Conservation Service, 2004

Soil survey of Yuba County, California /

by Lytle, Dennis J.
[Washington, D.C.?] : Natural Resources Conservation Service, 1998