Airborne electromagnetic and magnetotelluric geophysical surveys were conducted from 2018 to 2019 in Arrastra Gulch along the southern margins of the San Juan and Silverton calderas. This scene provides 3-D data integration combining electromagnetic data, geologic and historical mine mapping, and high-resolution drone imagery.
Hoogenboom, B.E., Deszcz-Pan, M., Anderson, E.D., Rodriguez, B.D., Smith, B.D., and Yager, D.B., 2022, Airborne electromagnetic and magnetic survey data, Silverton, Colorado, 2019: U.S. Geological Survey data release, https://doi.org/10.5066/P92IADBP.
Reitman, J., Rodriguez, B.D., Brown, P.J., and Yager, D.B., 2021, Audiomagnetotelluric sounding data in the Silverton Caldera complex, Colorado, 2019: U.S. Geological Survey data release, https://doi.org/10.5066/P9F68AQP.
Varnes, D.J., 1963, Geology and ore deposits of the South Silverton mining area, San Juan County, Colorado: U.S. Geological Survey Professional Paper, https://doi.org/10.3133/pp378A.
Basemap imagery service:
Esri, 2022, USGSTopo: Esri map service, accessed September 1, 2022, at https://basemap.nationalmap.gov/arcgis/rest/services/USGSTopo/MapServer.