Guidebook, fifth annual field conference, September 9-11, 1954. : Pryor Mountains - Northern Bighorn Basin, Montana. [electronic resource] / Editor, Paul W. Richard.. — Billings ? Mont.,, 1954]. — 184 p. (p.166-184 advert.) : illus.(part fold.) maps (3 fold., in pocket) 29cm.

Includes bibliographies.



Subjects--Topical Terms:
Geology--Montana.

LC Class. No.: QE46 / .B5 1954