Faces of the Ozark Aquifer face both sides of the Current River and that water from springs enter at or slightly below river level. In the sense of walking and floating through time, I think it is the grandest of canyons in the Ozarks, a great gash in the Ozark Aquifer where it dewaters throughout the depth to the river through springs. The Current is a small river and approximately 90% of its roughly 1000 cfs normal flow is provided by the springs that are aquifer flow into the river basin (Mugel et al., 2009). To make the point clear, consider Figure 22).
The actual genesis of karst, cave, and springs in this basin is a complex topic in itself. Springs that discharge over 100 cfs (7.5 107 gal/day) are first order and those that are 10-99 cfs are second order. Table 8 is a list of the largest springs on the Current (Alley 5 miles upstream on Jack’s Fork).
Table 8-Large Springs Along The Current River (author's consolidation)
Figure 22-Example cross section of Salem Plateau (Thornberry-Ehrlich, 2016) Note, erosion resistant is sandstone cap.
" A thick sequence of dolomite and sandstone of Ordovician and Cambrian age encloses the spring systems. Most of the large springs are along the Current River and their orifices are in the Eminence and Potosi Dolomites. The outcrop of the Eminence and Potosi forms a nearly straight band throughout which the Current River flows from its headwaters to mid-Carter County. The direction of this outcrop belt and the stream that traverses it is northwest and corresponds with a major joint system of the Ozarks. The joint system, the alignment of many of the streams, and the location of the big springs of the Current-Jacks Fork area are closely related" (Vineyard and Feder, 1974).