L.A.'s Mountain Biking Trails Inspiration Point Click Here for Map 210 Freeway exit Lake Ave & head north to where it intersects Loma Alta Drive. *** C A U T I O N *** Please exercise good judgement while using the Lower Sam Merril Trail to Echo Mountain. I would advise a MAX speed limit of 6 MPH while descending this delicate trail. Heavy hikers traffic and trail is very fragile. Advanced Current Trail Rating = 10 Click Here to Rate this Trail Click Here to Return to Trails Home