Ram's Head is a Class IV rapid located at mile 1. 5 on the Main Tuolumne River, featuring a rocky pitch with a powerful spouting hole created by a boulder at the exit—best scouted from either bank before running.

The rapid is navigable at medium to high flows but becomes more challenging (Class V) above 3,500 cfs, with a good recovery pool below for safety.

This rapid is part of the premier 18-mile whitewater rafting section accessed via Lumsden Road near Groveland, California, typically run as part of 1-3 day commercial or private rafting trips.