Full county map
Sangamon County
All currently mapped Sangamon County and nearby ISGS mine footprints and shaft points in one combined view.
82 footprints138 shafts
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Franklin Found mine maps
Interactive coal mine footprint and shaft maps built from ISGS mapped mine layers, county mine directories, and available mine-note source cards. Start with the full Sangamon County map, or jump into a town-centered radius view.
Town radius
Riverton
Riverton-centered view covering Spaulding, Dawson, Bissell, Barclay, Peerless, and nearby mine records.
5 mi radiusTown filter
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Town radius
Sherman
North Sangamon starting point for Sherman, Williamsville, Cantrall, and nearby mapped mine records.
8 mi radiusTown filter
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Town radius
Athens
Athens-centered view for the northern mine records and nearby mapped shafts.
5 mi radiusTown default
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Town radius
Springfield
Central Sangamon view for Springfield, Woodside, Southern View, and nearby mine records.
8 mi radiusTown default
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Town radius
Chatham
South-central Sangamon starting point for Chatham, Woodside, and nearby mine records.
5 mi radiusTown default
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Town radius
Auburn
South Sangamon starting point for Auburn and nearby mapped mine records.
5 mi radiusTown default
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Town radius
Pleasant Plains
West Sangamon starting point for Pleasant Plains, Salisbury, Berlin, and nearby records.
10 mi radiusTown filter
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Mine features are approximate and intended for historical reference. On the combined Sangamon map, choose a town to show only footprints and shafts within that town's selected radius. Use each map's Layers panel to separate confirmed footprints, known shafts, uncertain points, and modern active mines where present.