Title: Refractory clay deposits of south-central Colorado
First published: 1953
Subjects: Clay, Clay minerals, Geology, Geology, Stratigraphic, Mines and mineral resources, Sandstone, Sedimentation and deposition, Stratigraphic Geology, Stratigraphic correlation
Places: Colorado, Dakota Formation, Fremont County, Pueblo County
Time periods: Cretaceous
LC classification: QE75 .B9 no.993, TN942.W22 .B9 no.993