historical changes in ground-water quality in seep- impacted areas. 

 The text includes qualitative but potentially useful 

 interpretations of geochemical processes leading to seep 

 development in this area. 



Bibliographic source: Geoindex lat-long search 



Author: Reeves, F. 



Title: Thrust faulting and oil possibilities in the plains 

 adjacent to the Highwood Mountains, Montana 



Series: USGS Bulletin 806 



Date: 1928 



Regional geologic mapping at 1:250,000 scale covers the Kingsbury 

 (aka Mallard) Lake area. Reeves shows Kingsbury Lake to be 

 underlain by Colorado Shale and to be situated immediately south 

 of the southern limit of glacial drift deposition. Dikes related 

 to the Highwood Mountains intrusive event are mapped immediately 

 to the southwest, west and northwest. Surficial deposits of the 

 Kingsbury basin are not shown. Includes a discussion of the 

 lithologic characteristics of the Colorado shale (sandstone and 

 sandy shale beds are common lower in the section.) No discussion 

 of hydrology included. 



Kleinsch midt Lake. 



Bibliographic source: U.S. Geological survey compilation of 

 Blackfoot Valley references 



Author: Weber, W.M. and I.J. Witkind 



Title: Reconnaissance geologic map of the Browns Lake quadrangle, 

 Powell County, Montana 



Series: U.S. Geological Survey Open-file report 79-439 



Date: 1979 



Detailed surficial geologic mapping at 1:24,000 scale shows 



37 



