1. Palynology of the upper Campanian (Cretaceous) Judith River Formation, north-central Montana Author/Creator: Tschudy, Bernadine D., author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1973 Resource Type: Book Access & Availability: Loading
2. A pleistocene ice sheet in the northern Boulder Mountains, Jefferson, Powell, and Lewis and Clark Counties, Montana Author/Creator: Ruppel, Edward Thompson, 1925- author Publication/Creation: Washington, D.C. : United States Department of the Interior, Geological Survey, 1962 Resource Type: Book Access & Availability: Loading