Los Pinos Fm

Volcaniclastic conglomerate interbedded with basalt flows of Hinsdale Fm (Tbb) on east flank of San Juan Mountains. Grades laterally into Santa Fe Fm of San Luis Valley
State Colorado
Name Los Pinos Fm
Geologic age Tertiary
Lithologic constituents
Igneous > Volcanic > Mafic-volcanic > Basalt
Sedimentary > Clastic > Conglomeratevolcaniclastic

Tweto, Ogden, 1979, Geologic Map of Colorado: U.S. Geological Survey Special Geologic Map, scale 1:500,000.

NGMDB product
Counties Conejos - Rio Grande