STUDY NUMBER ; 3.3 



ORGANIZATION ; Montana Department of State Lands (MDSL) - 

 Hard Rock Mining Bureau 



TITLE OF STUDY ; Studies Associated with Montoro's German 

 Gulch Project 



CONTACTS: Terry Grotbo - MDSL - Hardrock Bureau - 444-2074 

 Kit Walther - MDSL - EIS Team Leader - 444-2711 

 Jerry Wells - MDFWP, Bozeman - 586-5419 



OBJECTIVE ; Establish baseline water quality and biological 

 conditions and determine instream flow needs for trout on 

 German Gulch. 



DURATION ; May-September 1984 (plus additional studies, 

 if needed, in the future) 



CURRENT STATUS ; The Montoro Gold Company of Reno, Nevada, 

 has proposed to develop a surface mine and ore processing 

 plant and tailings disposal facility in the German Gulch 

 drainage (a tributary of Silver Bow Creek near Gregson) . In 

 anticipation of an EIS for this project, this study collected 

 water quality, macroinvertebrate, periphyton and trout 

 population data at three sites on the stream: 



Below Edward Creek (Headwaters) 

 Below Beefstraight Creek 

 Near the mouth 



Wetted perimeter/stream discharge relationships were 

 plotted for each station, with minimum flows determined by 



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