1. Distribution of cadmium in samples of nonmagnetic heavy-mineral concentrate and in samples of stream sediment from the Wallace 1° x 2° quadrangle, Montana and Idaho [cartographic material] Yale Public content 1983. 2023-07-07T16:04:54Z. 2023-07-11T21:35:26Z. U.S. Geological Survey. English. cartographic image. Public. Montana, Idaho, Idaho., and Montana.