Marion Quadrangle

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Mining in the Marion Quadrangle

The outcrops of the Herrin and Springfield Coals are very close in the northern part of the Marion Quadrangle, which allowed both seams to be surface-mined. Since both coals were shallow, this enabled many small operators to mine one or both seams. The Herrin Coal is the thicker of the two, reportedly up to 9 feet thick, but more generally around 6 feet. The Springfield Coal ranged between 5 and 6 feet thick.

In the southern part of the Marion Quadrangle, a thin coal correlatable to the Tartar Coal of western Illinois (or Coal 4a of western Kentucky) was drift mined in the many gullies. The names and operating dates of few of these mines are known, but most were quite small in extent. This coal ranged between 3 and 4 feet thick.

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Coal Mines In Illinois Marion Quadrangle

Mines that Appear on the Marion Quadrangle

Unlocated Mines

Williamson County

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