Geologic map of the Ojito Peak quadrangle, Costilla County, Colorado.

Published 1996

Geologic map of the Russell quadrangle, Costilla County, Colorado.

Published 1997

Geologic map of the McCarty Park quadrangle, Costilla and Huerfano counties, Colorado.

Published 1995

Geologic map and cross sections of the La Veta Pass, La Veta, and Ritter Arroyo quadrangles, Huerfano and Costilla counties, Colorado /

by Vine, James David, 1921-
Published 1974

Geologic map of the San Luis Hills area, Conejos and Costilla counties, Colorado /

Published 1989

Geologic map of the Trinchera Peak quadrangle, Costilla, Huerfano, and Las Animas counties, Colorado.

Published 1996

Reconnaissance geologic map of parts of the Twin Peaks and Blanca Peak quadrangles, Alamosa, Costilla, and Huerfano counties, Colorado /

Published 1991