Cogswell Dam
The stunning 7.5-mile Devils Canyon Dam Truck Trail is located in the San Gabriel Mountains above Azusa. One of Southern California's most picturesque rides is the easy ascent from Highway 39 to the Cogswell Dam.
A little but constantly audible creek that is supplied by the upriver dam runs parallel to the road itself. The road offers drivers a nice, calm ride because it is frequently shaded by trees and mountains. There is no mobile service in this area. The San Gabriel Mountains, a trickling brook, you, and your bike are all that are present. There are several picnic tables along the route, so you may stop and eat or just enjoy the view. Keep in mind that you are in the Angeles National Forest and must pack out any rubbish you bring in.
The hill between Highway 39 and the dam is a challenge. Before you turn around and find you're moving quicker, you probably won't even notice the grade. The first 7 miles of the road are the primary draw, but there is a short, steep hill if you wish to go up to the dam itself. Bring the kids because this is a simple, low-intensity ride.
Apart from the fact that it is hauntingly beautiful, no public vehicles are allowed on the route. Public works workers may be driving a car or truck that you pass, but they are polite and aware of the needs of hikers and cyclists. The first mile or so might have a lot of pedestrian traffic, particularly on weekends. It feels as though you are the only one in the forest as you pass the main fishing and recreation sites.
You'll need a car because you're going into the mountains for this one. A 210 freeway exit is available at Azusa Avenue/Highway 39. Drive with the direction of north in your car. Approximately 20 minutes from the freeway, just past the intersection of Highway 39 and East Fork Road (you'll see a bridge), is where you'll find the road you're searching for. Here is a Google Maps link that shows where the dam road is located specifically. You have two parking options: on the side of the road or at a lot a quarter-mile away from Highway 39.
Length: 7.4 miles