Ottawa Quadrangle
Mining in the Ottawa Quadrangle
Coal mines in the Ottawa area were usually small in size. The seam mined was the Colchester Coal, which ranged between 2.0 and 2.5 feet in thickness at most locations. The Colchester Coal was relatively shallow in this area, which allowed for the coal to be stripped or worked as drift mines. The coal was sometimes mined in conjunction with the related underclay and used to fire the clay products produced, the clay tiles or brick being the primary product being produced.
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Coal Mines In Illinois Ottawa Quadrangle
Mines that Appear on the Ottawa Quadrangle
Unlocated Mines
La Salle County
Pages in category "Ottawa Quadrangle"
The following 34 pages are in this category, out of 34 total.
Media in category "Ottawa Quadrangle"
The following 15 files are in this category, out of 15 total.
M0657 fieldnotes.pdf 752 × 1,197, 3 pages; 667 KB
M0657 minenotes.pdf 731 × 1,202, 10 pages; 2.44 MB
M2686 fieldnotes.pdf 758 × 1,200; 205 KB
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M2693 fieldnotes.pdf 747 × 1,195, 2 pages; 507 KB
M2693 minenotes.pdf 731 × 1,202, 5 pages; 1.45 MB
M2694 minenotes.pdf 731 × 1,202, 6 pages; 1.18 MB
M2697 minenotes.pdf 731 × 1,202, 3 pages; 595 KB
M2698 minenotes.pdf 731 × 1,202, 2 pages; 312 KB
M2700 minenotes.pdf 731 × 1,202, 8 pages; 1.6 MB
M5536 minenotes.pdf 731 × 1,202, 4 pages; 833 KB
M90995533 minenotes.pdf 731 × 1,202, 2 pages; 369 KB
M90995664 minenotes.pdf 731 × 1,202; 223 KB