South of Frazier Park in the Los Padres National Forest, the Alamo Mountain Loop is a 20 mile loop open to off-road motorcycle trails riding. It is mostly level, but does have some narrow stretches and blind corners. After the pavement ends, the trail is rutted with rocky sections.
To reach the Goldhill Campground trailhead from the intersection of I-5 and SR 14 in Santa Clarita, go north on I-5 for 33.5 miles. Take exit 194 and go west on Gold Hill Rd./ 8N01 for 11.5 miles. Turn right into the Goldhill Campground Area.
Overall, Alamo Mountain Loop is the 11th most popular dirt bike trail of all 120 dirt biking rides in California.