to moderate to the NE to NW. 



The Quaternary deposits of the sample wetland are shown simply as 

 alluvium. 



This is the best bedrock map of the area reviewed. 



Bibliographic source: Geoindex lat-long search 



Author: Mudge, M.R. and R.L. Earhart 



Title: Bedrock geologic map of part of the Northern Disturbed 



Belt, Lewis and Clark, Teton, Pondera, Glacier, Flathead, 

 Cascade and Powell Counties, Montana 



Series: U.S. Geological Survey Miscellaneous Investigations Series 

 Map 1-1375 



Date: 1983 



Regional geologic mapping at 1:125,000 scale shows the Swamp Gulch 

 area underlain predominantly by Proterozoic Y Spokane Formation, 

 with Proterozoic Y Empire Formation probably at upper elevations 

 in the headwaters. The Proterozoic Z diorite also is exposed in 

 the Pass Creek and Swamp Gulch(?) drainages, and Tertiary 

 hornblende monzonite and monzonite porphyry are intruded into the 

 proterozoic rocks of the region. 



The Empire and Spokane formations are described as 

 predominantly clastic lithologies, but including calcareous cement 

 and carbonate interbeds, described as limestone in the Spokane and 

 both dolomite and limestone in the Empire Formation. 



Bibliographic source: None - agency file search 



Author: Dollhopf, D.J., J.D. Goering, R.B. Rennick, R.B. Morton, 

 W.K. Gauger, J.B. Guckert, P.M. Jones, K.C. Cooksey, K.E. 

 Bucklin, R. Weed, and M.M. Lehman 



Title: Hydrochemical , vegetational and microbiological effects of 

 a natural and a constructed wetland on the control of acid 

 mine drainage. 



Series: Montana Department of State Lands Abandoned Mines 



Reclamation Bureau Final Report on contract 2-6000-230, 

 performed by the Montana State University Reclamation 

 Research Unit. 



Date: 1988 



This document provides detailed analysis of the distribution and 



62 



