The San Juan country ; a geographic and geologic reconnaissance of southeastern Utah /
Gregory, Herbert E. 1869-1952.
The San Juan country ; a geographic and geologic reconnaissance of southeastern Utah / by Herbert E. Gregory, with contributions by Malcolm R. Thorpe. - Washington : U.S. Govt. Print. Off., 1938. - 123 p. : incl. ill., tables. 26 pl. (incl. fold. maps, fold. diagrs.) ; 29 cm.
At head of title : United States Department of the Interior ... Geological Survey.
Bibliographic footnotes.
gs 38000291
Geology--Utah--San Juan County
Physical geography--Utah--San Juan County
QE75 / .P9 no. 188
(200)qP no. 188
The San Juan country ; a geographic and geologic reconnaissance of southeastern Utah / by Herbert E. Gregory, with contributions by Malcolm R. Thorpe. - Washington : U.S. Govt. Print. Off., 1938. - 123 p. : incl. ill., tables. 26 pl. (incl. fold. maps, fold. diagrs.) ; 29 cm.
At head of title : United States Department of the Interior ... Geological Survey.
Bibliographic footnotes.
gs 38000291
Geology--Utah--San Juan County
Physical geography--Utah--San Juan County
QE75 / .P9 no. 188
(200)qP no. 188