Grapevine Mountain & Bitter Creek Trail is a 6 mile loop trail located near Warner Springs, CA and is rated as moderate. The trail is primarily used for hiking and off road driving and is accessible from November until April. 6.0 miles 2400 feet Loop hiking off road driving Expand Map Sign up now to see this map! Reviews (0)Photos (0)Recordings (1)No one has reviewed this trail yet. Be the first!