Triangular facets, SW MontanaApril 30, 2017/in /by Marli Miller fault-bounded, normal fault, recent faulting, active, fault-controlled https://geologypics.com/wp-content/uploads/2017/04/geologic-time-pics-logo-300x115.png 0 0 Marli Miller https://geologypics.com/wp-content/uploads/2017/04/geologic-time-pics-logo-300x115.png Marli Miller2017-04-30 20:26:112020-12-10 01:33:53Triangular facets, SW Montana