Interim Geologic Map of the Northwestern Quarter of the Beaver 30' x 60' Quadrangle, Beaver and Piute Counties, Utah (OFR-729)

Summary:

The Interim geologic map of the northwest ¼ of the Beaver 30' x 60' quadrangle is a revised portion of the entire quadrangle map originally published in 2005 as UGS OFR #454. The revisions reflect our current understanding of the newly discovered Black Mountains and Markagunt gravity slides, parts of perhaps the world’s largest terrestrial landslide complex, which we now know spans much of the Beaver 30' x 60' quadrangle. The map also incorporates new mapping of surficial deposits in the Escalante Desert, here simplified for reasons of map scale, done as part of the Utah FORGE (Frontier Observatory for Research in Geothermal Energy) project. We continue to work on revisions of the remainder of the quadrangle and surrounding areas.