Date: 1986 



Regional map compilation at 1:250,000 scale shows surficial 

 deposits in the Gaffney Lake area underlain by undifferentiated 

 Fort Union Formation of early Tertiary (Paleocene) age. 



Bibliographic source: Montana Bureau of Mines and Geology 

 Publications Index. 



Author: Bergantino, R.N. 



Title: Quaternary geology of the Wolf Point 1 degree X 2 degree 

 quadrangle. 



Series: MBMG Open-file report 172 



Date: 1986 



Regional compilation at 1:250,000 scale shows Gaffney Lake 

 straddling the contact between Late Wisconsin outwash deposits and 

 an extensive area of ice-contact stratified drift (probably a kame 

 terrace) occupying the southern margin of the Medicine Lake swale. 



Bibliographic source: Geoindex lat-long search 



Author: Witkind, I.J. 



Title: Quaternary geology of the Smoke Creek-Medicine Lake-Grenora 

 area, Montana and North Dakota. 



Series: U.S. Geological Survey Bulletin 1073 



Date: 1959 



Hailstone and Half breed National Wi ldlife Refuges. 



Bibliographic source: Shelf search of MBMG collection. 



Author: Feltis, R.D. 



Title: Hydrogeologic map of the Billings 1X2 quadrangle and 

 vicinity, Montana 



Series: MBMG Hydrogeologic Map 9 



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