Effect of Gate Installation 



on Continued Use by Bats 



of Four Abandoned Mine 



Workings in 



Western Montana 



A Report to: 



Montana Department of Environmental Quality 

 Mine Waste Cleanup Bureau 



2209 Phoenix Avenue 

 Helena, Montana 59620-0901 



Submitted by: 

 Paul Hendricks 



December, 1999 



MONTANA 



Natural Heritage 

 Program 



