Oregon

1904

U.S. Geological Survey

1:250k

Modoc County, California.

1911

Green, Abbott M.

1:190k

Northern California, Siskiyou, Modoc Counties (sheet 2)

1844

California: Office of State Engineer

1:253k

Siskiyou County.

1935

California Division of Highways

1:107k

Geologic Map of California, Alturas Sheet.

1958

California Division of Mines and Geology

1:250k

Modoc County.

1935

California Division of Highways

1:206k

Location of war relocation center : Tule Lake.

1943

United States. Office of War Information

1:1m

(Sheet 1) Heald-Menerey's Geographical, Commercial and Recreational Map of California

1927

Heald-Menerey Company, Inc.; Heald, Ralph P.

Oregon Cascades.

1918

Routledge, Fred A., 1873-1936

Text: Explanatory Data. Alturas Sheet. Index Map: Index to Geologic Mapping used in Compilation.

1958

California Division of Mines and Geology