Clays of eastern Colorado
Butler, G. M. (Gurdon Montague)
1881-
creator
text
xx
Denver, Col
The Smith-Brooks printing company
1915
monographic
eng
353 p. illus., fold. plans. 24 cm.
by G. Montague Butler, 1914.
"Partial list of the sources of data consulted in compiling the descriptions of the Colorado clay-bearing formations": p. 148-149.
Clay
Colorado
QE91 .A4 no.8
gs 15000679
DLC
760409
20260227111318.0
gs 15000679