1. Geologic map of the Canyon Ferry Dam 30ʹ x 60ʹ quadrangle, west-central Montana Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, Colo. : U.S. Dept. of the Interior, U.S. Geological Survey, 2005 Resource Type: Map Edition: Version 1.0. Access & Availability: Loading
2. Geologic map of the Canyon Ferry Dam 30ʹ x 60ʹ quadrangle, west-central Montana Author/Creator: Reynolds, Mitchell W. Publication/Creation: Denver, Colo. : U.S. Geological Survey, 2005 Resource Type: Map Access & Availability: Loading
3. Precambrian basement geologic map of Montana, an interpretation of aeromagnetic anomalies Author/Creator: Sims, P. K. 1918-2011. (Paul Kibler) Publication/Creation: Denver, Colo. : U.S. Dept. of the Interior, U.S. Geological Survey, 2004 Resource Type: Map Edition: Version 1.0. Access & Availability: Loading