Correlation of geologic formations between east-central Colorado, central Wyoming and southern Montana /
Lee, Willis T. 1864-1926.
Correlation of geologic formations between east-central Colorado, central Wyoming and southern Montana / Willis T. Lee. - Washington : Gov't. Print. Off., c1927. - v, 80 p. : 35 plates (part fold., incl. illus., diagrs.) maps ; 29 cm.
At head of title: Department of the Interior.
Bibliography: p.3-4.
gs 27000235
Geology--Colorado.
Geology--Wyoming.
Geology--Montana.
QE75 / .P9 no. 149
I 19.16:149
Correlation of geologic formations between east-central Colorado, central Wyoming and southern Montana / Willis T. Lee. - Washington : Gov't. Print. Off., c1927. - v, 80 p. : 35 plates (part fold., incl. illus., diagrs.) maps ; 29 cm.
At head of title: Department of the Interior.
Bibliography: p.3-4.
gs 27000235
Geology--Colorado.
Geology--Wyoming.
Geology--Montana.
QE75 / .P9 no. 149
I 19.16:149