The South Branch rises in Mower County as agricultural drainage ditches, which disappear underground, re-emerging as a much cooler stream[1] at Mystery Cave near Preston, Minnesota. The 48°F water creates superb conditions for brook trout.
The Root River State Trail is a 42 mile long trail for bicycling, hiking, skating, skiing, etc. It begins in Fountain and continues through Lanesboro, Whalen, Peterson, Rushford, and Houston.
2007 flood
As a result of the 2007 Midwest flooding, the river rose to 19 feet, about a foot short of the height of the dike protecting the town of Houston.[2]