If you have ever wanted to learn about the geology of Idaho, this site is a great way to explore everything from Coeur d'Alene to the Sawtooth Mountains. This digital version of a course offered at Idaho State University systematically divides Idaho geology into a set of different teaching modules. The modules cover topics like the Idaho Batholith, the Columbia River Basalts, and the Lake...

This paper deals with the Proterozoic Yellowjacket Formation in the Lemhi Range, Idaho. The stratigraphy, sedimentology, and structural history are described.