Category:Green Rock-Quadrangle: Revision history

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    October 26, 2022

    • curprev 16:2716:27, October 26, 2022‎ Alan.Myers talk contribs‎ 2,531 bytes +2,531‎ Created page with "__NOTOC__ ==Mining in the Green Rock Quadrangle== The 1875 Atlas of Henry County indicates mining had been occurring in the Green Rock Quadrangle prior to 1875, as railroad sidings that had been constructed to the Shepherd Mines (mine index 5376, 5611 and 5612) are shown. However, most of the mines were small mines operating in the Rock Island Coal, with low production for local use. Many mines may be located in the vicinity, and their locations are unknown...."
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