@misc{indiciaef545b7503405, title = {Coal resources of the Hilgard Mountain Quadrangle, Sevier County, Utah}, author = {AAA Engineering and Drafting Inc.}, year = {1979}, doi = {10.3133/ofr791014}, url = {https://pubs.usgs.gov/publication/ofr791014}, note = {Source identifier: ofr791014} }