Happy Camp is an unincorporated community in Siskiyou County, California in the United States. The town of Happy Camp "The Heart of the Klamath" is located on State Route 96, about 70 miles west of Interstate 5 and 100 miles northeast of Willow Creek. The town of O'Brien, Oregon is accessible from Happy Camp (which is nearly 40 miles away). The shortest route to Oregon, over the Grey Back pass, is a seasonal summer road and is not cleared or maintained in snowy conditions. Check with the Forest Service located in town on SR 96, for road closure information.