3 pages matching Northern Illinois Coal and Iron Company in this book
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abundant afford appears arenaceous bank beds bituminous shale Black slate blue clay boring boulders branch building stone calcareous chert clay shale Clinton county Coal Measures coal seam contains corner of section county line crinoidal crops deposits depth Drift eastern exposed exposure farther feet in thickness feet thick fifty feet Fire-clay formation forms fossils gravel hundred feet Illinois river inches thick iron Kankakee Keokuk Lake layers lime line of section localities Loess Louis limestone lower coal Menard county mines nearly nodules northeast northwest quarter numbers outcrop overlaid overlying Peters sandstone portion prairie probably quarried quarter of section railroad range ravine river bluffs rock sand sandy shale Sangamon river seam of coal shaft shaly shaly sandstone slaty soil southeast southwest square miles strata streams surface thin thin-bedded three feet timber tion township township 12 Trenton underlaid underlying upper valley Vermilion Vermilion county vicinity western