Report copyright - Colchester Coal Elevation County Coal Map Series · 4 3 2 1 6 6 4 2 2 6 5 1 2 4 5 1 5 5 5 3 1 6 3 4 4 2 4 3 3 1 5 5 4 3 2 1 6 4 3 2 1 6 6 5 7 6 2 1 31 7 2 52 5 4 8 7 1 43 4 6 5 6
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