Perry, Eugene S. 1892- Physiography and ground-water supply in the Big Hole basin, Montana, by Eugene S. Perry. - Butte, Montana, Montana School of Mines, 1934. - ii, [1], 18 p. illus., col. map, tables, diagrs., 28 cm. Mimeographed. LCCN: gs 34000109 Subjects--Topical Terms: Physical geography--Montana.Water-supply--Montana.Groundwater--Montana. LC Class. No.: GB126 / .M