https://www.usgs.gov/publications/coal-resources-chemard-lake-naborton-no-2-coal-zone-lower-wilcox-group-paleocene
Coal resources for the Chemard Lake (Naborton No. 2) coal zone of the lower Wilcox group...
The lower part of the Wilcox Group of northwest Louisiana contains shallow (less than 500 ft) coal deposits that are mined for use in mine-mouth electric...