Scale approximately 1:63,360. Scale approximately 1:40,000.
Note
Includes text, "Estimated total reserves of coal in Los Pinos River coal field," "Wells drilled within map area : (as of Jan. 1, l952)," "Graphic sections of Cretaceous and Tertiary strata in the Ignacio area," and "Graphic sections of coal beds in the Fruitland formation." "Base of geologic map compiled from aerial photographs."