ABSTRACT 



During the 1995 field season, small mammals were surveyed for at 4 sites; no northern bog 

 lemmings {Synaptomys borealis) were caught. The four sites were the most suitable sites seen in 

 the Garnet Resource Area, but were not of exceptionally high quality. The total number of 

 known bog lemming sites in Montana is 17, the most sites in any of the lower 48 states. Known 

 sites in Montana range in size from 1 to approximately 340 acres. The best habitat predictor for 

 potential northern bog lemmings sites in Montana is the presence of large, thick moss mats, 

 particularly sphagnum moss. 



ACKNOWLEDGMENTS 



I would like to thank Dave McCleery for his help throughout the study. M. Beer, D. Dover, C. 

 Jones, and K. Jurist helped with database applications and mapping in the preparation of the 

 report. Financial support for the project came from the Bureau of Land Management, Garnet 

 Resource Area, and the Montana Natural Heritage Program (Montana State Library). 



Ill 



