Check out some of the best hiking, walking and backpacking routes in Altadena, California. The
Valley Forge Trail is the most popular trail. There are trails of various difficulty levels including medium and extra difficult. The trail with the highest elevation climb is the
San Gabriel Peak Trail and the trail with the least amount of climbing is the
Echo Mountain Trail. The longest trail is the
Idlehour Trail at 25 km. For a shorter adventure you can try the
Echo Mountain Trail at 3 km. Get off line access to Healthcare, Town, History, and Peak locations and much more with a Hiiker subscription.