Barrett Lake-Lake Eiler Loop Trail is a 7 mile loop trail located near Hat Creek, CA and is good for all skill levels. The trail is primarily used for hiking and is accessible from June until November. Dogs are also able to use this trail.
Just did this hike with my wife last weekend for a quick overnight trip. Nice easy hike. The trails were all clear and in good condition. We came in from the Tamarack trail head.