OF-12-03 Geologic Map of the Eastonville Quadrangle OF-12-03 Geologic Map of the Eastonville Quadrangle, Elbert County, Colorado
OF-12-04 Geologic Map of the Elbert Quadrangle OF-12-04 Geologic Map of the Elbert Quadrangle, Elbert and El Paso Counties, Colorado
OF-12-02 Colorado Map of Potential Evaporite Dissolution and Evaporite Karst Subsidence Hazards (detail) OF-12-02 Colorado Map of Potential Evaporite Dissolution and Evaporite Karst Subsidence Hazards