
Mason sits at a geographic crossroads in southern Bayfield County, where the Chicago and North Western rail line and a network of county roads navigate the complex hydrology of the White River. The landscape transitions from the upland areas of Kelly and Mason townships into the expansive Bibon Marsh to the south. This marshy lowland, defined by the winding course of the river and its many tributaries like Eighteenmile Creek and Twentymile Creek, dominates the southern half of the quadrangle.
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