Page 63 includes a description of the kaine terrace and esker 

 deposits near the sampling site, some of which are well sorted and 

 mined for gravel. [Kame terrace likely elevated above water 

 table??] Page 65 includes a description of the paludal deposits, 

 characterized as "extremely fine-grained" and unlikely to yield 

 much water to wells. Paludal deposits are also described 

 "relatively thin", but no values are given. Description of 

 conditions in 1946 indicate that high water table and capillarity 

 caused visible surficial salt concentrations near the sampling 

 site. 



Water quality analyses from Quaternary aquifers in the pre-glacial 

 Missouri channel (copied) contain dissolved solids up to 2600 mg/1. 

 Na:Ca+Mg ratios are high in the higher-TDS water of the Missouri 

 channel, lower in alluvial fan deposits. 



A shallow observation well was maintained within the sample site 

 quarter-section (28-13-5dd), with bimonthly measurements from 1946- 

 1953, with water levels ranging from about 4.5 to >11.5 feet during 

 the period of record. Spring peaks, winter minimum levels. 



Bibliographic source: Geoindex lat-long search 



Author: Pierce, W.G. and C.B. Hunt 



Title: Geology and mineral resources of north-central Choteau, 

 western Hill and eastern Liberty Counties, Montana. 



Series: USGS Bulletin 847-F 



Date: 1937 



Mapping at a scale of about 1:125,000 with Big Sandy at the extreme 

 eastern edge of the coverage. Generalized bedrock only, with no 

 surficial geology shown. This document is of historical interest 

 only, adds nothing to useful to information about surficial 

 materials or hydrology. 



Black Coulee 



Bibliographic source: Geoindex lat-long search 

 Author: Zimmerman, E.A. 



Title: Preliminary report on the geology and ground-water 



10 



