San Mateo Trail is a 13.9 mile out and back trail located near Lake Elsinore, CA that offers the chance to see wildlife and is rated as difficult. The trail is primarily used for hiking and is accessible year-round.
Directions from Temecula, CA: Travel Interstate 15 to the Clinton Keith Road exit and go west, then south on Tenaja Road for a total of 9.9 miles. Turn right on Rancho California Road (FS 7S01). Continue 5 miles to trailhead.