PO-05 Poster - Geologic Mapping Colorado Download Publication Details This full-color poster illustrates the how and why of geological maps. Shown is a completed quadrangle map for Breckenridge in Summit County, Colorado and a map of the status of mapping in Colorado as of 2007. See the current Statemap Index Map for up-to-date info on our mapping projects. Digital PDF download. PO-05D Citations Scott, Larry. “PO-05 Poster - Geologic Mapping Colorado.” Colorado Geological Survey, Division of Minerals and Geology, Department of Natural Resources, 2005. https://doi.org/10.58783/cgs.po05.fhtp2916. CGS Publications. https://coloradogeologicalsurvey.org/publications/geologic-mapping-colorado-poster/.