Title: Detailed study of selenium in soil, water, bottom sediment, and biota in the Sun River Irrigation Project, Freezout Lake Wildlife Management Area, and Benton Lake National Wildlife Refuge, west-central Montana, 1990-92
Subjects: Soils, Sun River Irrigation Project (U.S.), Selenium content, Irrigation water, Pollution
Places: Benton Lake National Wildlife Refuge (Mont.), Montana, Freezout Lake Wildlife Management Area (Mont.)