Analysis of approximately 2,200 shallow density logs in 22 parishes in Louisiana has indicated a significant occurrence of near-surface lignite (that which occurs at a depth of less than 200 ft or 61 m below the surface). The preparation of lignite isopleth, isopach, and reserve estimates for the 22 parishes indicated that 17 contain near-surface lignite and 14 contain commercially significant near-surface lignite which occurs in seams 3 ft (9 m) or greater in thickness.

Significant lignite occurs not only in the Wilcox Group (Eocene), but in the Jackson and Claiborne Groups (Eocene) as well.

Plans for four lignite surface mines in northwest Louisiana have been announced, with more announcements imminent. Commercial mining should begin in late 1981.

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