Map 1-1300 

 Date: 1982 



Regional compilation of bedrock geologic mapping at 1:250,000 scale 

 shows the North Fork Blackfoot source area for the North Fork till 

 to be underlain by Proterozoic (Belt) formations from the Spokane 

 Formation through the Bonner Formation, including large areas of 

 Helena Formation (dominantly carbonate lithologies) in the lower 

 and middle basin. The upper basin includes areas of 

 undifferentiated Cambrian and Devonian rocks. 



Fox Lctke 



Bibliographic source: Geoindex lat-long search 



Author: Colton, R.B. , R.W. Lemke and R.M. Lindvall 



Title: Glacial map of Montana east of the Rocky Mountains 



Series: U.S. Geological Survey Miscellaneous Geologic 

 Investigations Map 1-327 



Date: 1961 



Regional mapping of glacial surface features at 1:500,000 scale 

 shows Fox Lake near the triple junction between a Redwater Creek- 

 Fox Creek drainage channel and the North Fork Burns Creek channel . 

 Two additional drainage ways are shown extending northwestward to 

 near the drainage divide between the Missouri and Yellowstone 

 drainages. The position of the maximium glacial advance is shown 

 approximately along the drainage divide to the north, then turning 

 due south and crossing Fox Creek just east of Fox Lake and lower 

 Burns Creek. [The North Fork Burns Creek drainage way may have 

 carried meltwaters during times when Fox Creek was impounded but 

 Burns Creek was not.] 



The map suggests that this drainage may have been an important one 

 at times of near-maximum advance. Fox Creek and Fox Lake may be 

 overdeepened and underlain in places by gravel sequences similar 

 to Burns Creek. 



Bibliographic source: Geoindex lat-long search 



Author : Parker , F . S . 



Title: The Richey - Lambert Coal Field, Richland and Dawson 



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