1. Geologic map of the Big Delta B-1 quadrangle, east-central Alaska Author/Creator: Geological Survey (U.S.) Publication/Creation: [Reston, VA] : U.S. Dept. of the Interior, U.S. Geological Survey ; Denver, CO : For sale by U.S. Geological Survey Information Services, 2007 Format: Map Access & Availability: Loading
2. Geologic map of the Big Delta B-2 quadrangle, east-central Alaska Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by U.S. Geological Survey Information Services Format: Map Access & Availability: Loading