Half Moon Riffle is a Class II rapid located in Huggins Canyon on the Rogue River's Wild section, approximately 26. 5 miles downstream from Grave Creek.

This series of three riffles marks the entrance to the scenic mile-long Huggins Canyon and offers enjoyable rolling waves suitable for intermediate paddlers.

Three campsites (Lower, Middle, and Upper Half Moon Bar) with bear fences and toilets are available on the right bank for overnight river trips.