AREA BOUNDARY AND NAME
Coal Valley township as it appears today, is not nearly as large as it was when organized, for then it contained all of Rural township, and almost six sections of Black Hawk township. There are now less than twelve sections in the township. It is bounded on the north by South Rural township, the east by Henry county, the south by Rural township, and on the west by Black Hawk township.
The name was given it on account of the rich deposit here of coal of good quality. The land is rough and broken, and although agriculture is carried on to some extent, the wealth of the township is in the coal fields. The mining activity is the leading industry of this locality.
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