| |
| | Indiana Geological Survey Annual Report 1870 |
 | | Collett has shown that coal N, which, in the wetern part of Clay and the eastern part of Vigo counties, is of good quality, and from four to five feet thick, is only found in Sullivan county, over a small area along the Wabash river, and in the southern part of the county. |
 | | On the other hand, coal M, which only appears as a thin seam in the former counties, underlies nearly the entire area of the latter county, and attains to the grand dimensions of a nine foot seam on Pitt's farm, section 3, township 9, range 8. |
 | | Coal L, appears to be the lowest seam that is worked in Sullivan county, though coal K, has been reported in bores at several localities. |
| www.indiana.edu /~libgeol/cox1870/1870report.html (1991 words) |
|