1. Hydrogeology and simulation of water flow in strata above the Bearpaw Shale and equivalents of eastern Montana and northeastern Wyoming Author/Creator: Hotchkiss, W. R., author Publication/Creation: Helena, Montana : U.S. Geological Survey, 1986 Resource Type: Book Access & Availability: Loading
2. Hydrogeology and simulation of water flow in strata above the Bearpaw Shale and equivalents of eastern Montana and northeastern Wyoming Author/Creator: Hotchkiss, W. R., author Publication/Creation: Helena, Montana : U.S. Geological Survey, 1986 Resource Type: Book Access & Availability: Loading