@misc{indiciaebcfd15c386b9, title = {Pennsylvanian and Early Permian paleogeography of the Uinta-Piceance Basin region, northwestern Colorado and northeastern Utah}, author = {Samuel Y. Johnson and Marjorie A. Chan and Edith A. Konopka}, year = {1992}, doi = {10.3133/b1787cc}, url = {https://pubs.usgs.gov/publication/b1787CC}, note = {Source identifier: b1787CC} }