Grand Canyon Private Boaters Association
The American Rivers
California Salmon River
Stanislaus River
Klamath River
Tuolumne River
GORP page on Tomales Bay
BLM River Recreation Page
Russian River Watershed Cleanup Late September. Russian River, Sonoma County, California.
Tuolumne River - Paddle to the Sea May-June, multiple events.
American River Festival Mid-September.