There is an undercut boulder in the middle of the main channel here. The move to miss the boulder is challenging and some people consider this the most dangerous rapid on the Illinois. Located at USGS river mile 30.9.
Rapid
N/A
Rapid
IV
Rapid
IV+
Rapid
IV
Rapid
III+
Rapid
IV
Rapid
N/A
Rapid
N/A
Rapid
IV
Rapid
III+
Rapid
V
Rapid
IV
Rapid
IV
Rapid
IV+
Rapid
N/A