Category:Litchfield-Quadrangle: Revision history

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    October 27, 2022

    • curprev 10:3610:36, October 27, 2022‎ Alan.Myers talk contribs‎ 3,460 bytes +3,460‎ Created page with "__NOTOC__ ==Mining in the Litchfield Quadrangle== The area around Litchfield presents challenges for anyone wishing to mine coal. The Walshville channel, contemporaneous with Herrin Coal deposition, renders most of the southeastern third of the quadrangle lacking in the Herrin Coal. The remainder of the quadrangle has Herrin Coal, which is split and has unfavorable roof conditions. The Springfield Coal is less than 28 inches thick over the entire quadrangle. Therefore, m..."
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