1. Geological and geophysical data for a three-dimensional view : inside the San Juan and Silverton Calderas, Southern Rocky Mountains Volcanic Field, Silverton, Colorado Author/Creator: Yager, Douglas B., author Publication/Creation: [Reston, Virginia] : U.S. Department of the Interior, U.S. Geological Survey, 2019 Format: Book Access & Availability: Loading
2. Application of tracer-injection techniques to demonstrate surface-water and ground-water interactions between an alpine stream and the North Star Mine, Upper Animas River Watershed, southwestern Colorado Author/Creator: Wright, Winfield G. Publication/Creation: Denver, CO : U.S. Geological Survey, Information Services [distributor]. Format: Book Access & Availability: Loading