Metsker's map of Humboldt County, California

1942

Chas. F. Metsker

1:127k

Humboldt County.

1935

California Division of Highways

1:225k

Geologic Map of California, Redding Sheet.

1962

California Division of Mines and Geology

1:250k

Northern California, Humboldt, Trinity Counties (sheet 3)

1844

California: Office of State Engineer

1:253k

Hayfork

1982

1:100k

Garberville

1979

1:100k

Eureka

1961

1:250k

Eureka

1958

1:250k

Eureka

1949

1:250k

Hoopa

1983

1:100k