Three C Rock is an unimproved boat ramp on the South Umpqua River managed by the US Forest Service, offering primitive access for boaters and anglers.

The site is open and accessible for launching, though as an unimproved ramp, visitors should be prepared for basic facilities. Note that Oregon Health Authority has issued a permanent advisory for cyanobacteria (blue-green algae) on the South Umpqua River.