The distribution of upland streams and rivers predominantly lies in the Ozark Highlands subgeography and the Ouachita Mountains portion of the West Gulf Coastal Plains, with a small portion in the East Gulf Coastal Plain. This stream type is essentially absent from the other two subgeographies. Our assessment defined upland streams and rivers as free flowing streams having an average annual flow between 10 and 6,000 cubic feet/second (cfs) and sitting at an elevation >130 meters according to the National Hydrography Dataset (v2).
Summary
The distribution of upland streams and rivers predominantly lies in the Ozark Highlands subgeography and the Ouachita Mountains portion of the West Gulf Coastal Plains, with a small portion in the East Gulf Coastal Plain. This stream type is essentially absent from the other two subgeographies. Our assessment defined upland streams and rivers as free flowing streams having an average annual flow between 10 and 6,000 cubic feet/second (cfs) and sitting at an elevation >130 meters according to the National Hydrography Dataset (v2).
