File:M-826 Coop 17 fig 27.jpg
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| Mine Index(s): | 0300, 0209,0300 |
| Mine Company: | Willisvile Co. No. 7(?) |
| Mine Name | Sparta |
| Photo Date | Pre-1914 |
| Photo Credit | Illinois State Geological Survey |
| ISGS Library Call Number | M-826 |
| Caption | Swamp in a typical sag in Randolph County where a 6 foot coal is being mined at depth of 150 feet. The rooms are on 50 foot centers; pillars 18 feet. |
| Publication | Fig. 27 Cooperative Bulletin 17 – Subsidence in Illinois |
unsure of correct index number
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|---|---|---|---|---|---|
| current | 14:58, January 24, 2019 | | 2,500 × 1,471 (463 KB) | Alan.Myers (talk | contribs) |
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