Known to California paddlers as the 'Cal Salmon,' this wild tributary of the Klamath delivers some of the finest expert whitewater in the state. The Nordheimer run is a classic Class IV–V big-water test piece with crystal clear water, deep pools, and dramatic Klamath Mountains scenery. Spring snowmelt from the Marble Mountain and Trinity Alps Wilderness areas powers the run.
River conditions are community-verified. CFS ranges, difficulty ratings, and trip sections may not reflect every flow level or seasonal change. Always check current conditions, scout unfamiliar rapids, and paddle within your skill level. If you spot an error, use the Improve This River button at the top of the page — your local knowledge is what makes this atlas accurate.