

by 



Robert L. Newell 

 Aquatic Ecologist 

 Montana Dept. of Fish and Game 



TECHNICAL REPORT NO. 5 



conducted by the 



Water Resources Division 

 Montana Department of Natural Resources and Conservation 

 32 S. Ewing 

 Helena, MT 59601 



Bob Anderson, Project Administrator 

 Dave Lambert, Editor 



for the 

 Old West Regional Commission 

 228 Hedden Empire Building 

 Billings, MT 59101 



Kenneth A. Blackburn, Project Coordinator 



July, 1977 



