Geological map of the state of Arizona

1924

[Tucson] : Arizona Bureau of mines

Reconnaissance map of the Salton Sink, California

1908

E.M. Douglas

1:500k

Reconnaissance map of the Salton Sink, California

1906

E.M. Douglas; R.B. Marshall; W. Carvel Hall

1:500k

Kaart van het Westelyk Gedeelte van Nieuw Mexico en van California : volgens de laatste ontdekkingen der Jesuiten en anderen

1765

Tirion, Isaak

1:5m

[Die Vereinigten Staaten von Nord-Amerika, Blatt 4]

1876

Stieler, Adolf

[Die Vereinigten Staaten von Amerika in 6 Blättern, Blatt 4]

1892

Stieler, Adolf

Metsker's map of Imperial County, California

1942

Chas. F. Metsker

1:127k

Map of Riverside County Showing Locations of Mines and Mineral Deposits

1945

Tucker, W. B.; Sampson, R. J.

1:300k

Map of Riverside County, California, showing sections, townships, ranch lines, and topography

1934

Riverside County (Calif.). County Surveyor's Office.; Riverside County Chamber of Commerce (Riverside County, Calif.); Fulmor, A. C.

1:250k

Map of Riverside County, California, showing sections, townships, ranch lines, and topography

1929

Riverside County (Calif.). County Surveyor's Office.; Fulmor, A. C.; Riverside County Chamber of Commerce (Riverside County, Calif.)

1:250k