Geology of the Three Forks quadrangle, Montana.
Robinson, G. D. 1918-
Geology of the Three Forks quadrangle, Montana. With sections on petrography of igneous rocks, by H. Frank Barnett. - Washington, U.S. Govt. Print. Off., 1963. - 143 p. illus., maps (2 col.) diagrs., tables. 29 cm.
4 pieces of illustrative matter fold. in pocket.
Bibliography: p. 135-140.
gs 63000240
Geology--Montana--Three Forks quadrangle
Petrology--Montana--Three Forks quadrangle
QE75 / .P9 no. 370
I 19.16:370
Geology of the Three Forks quadrangle, Montana. With sections on petrography of igneous rocks, by H. Frank Barnett. - Washington, U.S. Govt. Print. Off., 1963. - 143 p. illus., maps (2 col.) diagrs., tables. 29 cm.
4 pieces of illustrative matter fold. in pocket.
Bibliography: p. 135-140.
gs 63000240
Geology--Montana--Three Forks quadrangle
Petrology--Montana--Three Forks quadrangle
QE75 / .P9 no. 370
I 19.16:370