wetland' s distinct water chemistry are possibilities. 



Mill-Willow. 



Bibliographic source: Geoindex lat-long search. 



Author: Konizeski, R.L., R.G. McMurtrey and A. Brietkrietz 



Title: Geology and ground-water resources of the Deer Lodge 

 Valley, Montana 



Series: USGS Water-Supply Paper 1862 



Date: 1968 



Hydrogeologic mapping at scale of 1:62,500 shows the site underlain 

 by undifferentiated Quaternary alluvium. Potentiometric 

 interpretation shows adjacent reach of Silverbow Creek to be 

 receiving ground-water discharge, but there were few data points 

 to support this. 



Gravimetric interpretation shows a gravity low centered just north 

 of Opportunity, with relatively steeply increasing values eastward 

 beneath the wetland area, showing thinning valley fill to the east 

 from a maximum near valley axis. 



Description of the characteristics of the alluvium includes the 

 generalization that thickness averages about 20 feet on the Clark 

 Fork floodplain, underlain by Pliocene sand and gravel. Beneath 

 the "Willow Creek Flat", however, thickness is less than 10 feet 

 and overlies volcanics. [Not clear exactly where the Willow Creek 

 Flat is - possibly farther upstream on Willow Creek.] 



Includes no water quality section. 



Nine Pipe Reservoir (Outlet and Pothole) 



Bibliographic source: Geoindex lat-long search 



Author: Boettcher, A.J. 



Title: Ground-water resources in the central part of the Flathead 

 Indian Reservation, northwestern Montana. 



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