The Driftless Region is blessed with an exceptional coldwater fishery (native brook trout and non-native brown trout).  Based on statistical modeling, it has been predicted that over the next 50 years brook trout will virtually disappear from the region and areal extent of brown trout will decrease significantly.  However, these predictions do not account for potentially significant increases in groundwater recharge and hence in baseflow as a result of likely increases in fall through spring precipitation and potential decreases in winter frost.  Nor do they account for the fact that baseflow in the Driftless Region is due mainly to thousands of springs, many of which are supply streams with relatively small drainage areas (e.g., less than 10 km2).  Empirical evidence suggests that flow from these springs as well as from in-channel seeps persists at anomalously high rates during droughts, such as the severe drought of 2012