Bitterroot Resources Ltd., an exploration stage company, engages in the acquisition, development, exploration, and evaluation of mineral properties in the United States. It primarily explores for copper, nickel, gold, silver, and PGM deposits. The company holds a 100% interest in the LM property covering an area of 40 acres situated in Baraga County, Michigan. It also has an option to acquire a 100% interest in the Castle West property that includes 34 unpatented mining claims and three leased unpatented claims covering an area of approximately 282 hectares located in western Nevada's Gilbert mining district, Nevada, as well as 13-claims in Coyote Sinter gold/silver project situated in Elko County, Nevada. The company was incorporated in 1951 and is headquartered in West Vancouver, Canada.