Highly aquatic and usually restricted to dense ground cover and thick overhanging riparian growth along streams, lakes, beaver ponds, and marshes from sea level to alpine areas (Banfield 1974, Beneski and Stinson 1987, Nagorsen 1996).
Banfield, A. W. F. 1974. The mammals of Canada. University of Toronto Press, Toronto, Canada. 438 pp.
Beneski, J. T., Jr., and D. W. Stinson. 1987. Sorex palustris. Am. Soc. Mamm., Mammalian Species 296:1- 6.
Nagorsen, D.W. 1996. Opossums, shrews and moles of British Columbia. Royal British Columbia Museum Handbook. UCB Press, Vancouver BC. 149 pp.