Mammoth Mountain Resort to Devil's Postpile National Monument

You'll primarily follow the paved Reds Meadow Road. During peak season, a mandatory shuttle bus operates. Cyclists can bike down to Devil's Postpile without a fee. However, if you wish to take the shuttle back up to Mammoth Mountain, a transportation fee applies. Shuttle buses can transport bicycles, but space is limited to two bikes per bus.

While dogs are generally allowed on the Reds Meadow Road, specific rules apply within Devil's Postpile National Monument. Dogs must be on a leash at all times. Please check the official National Park Service website for the most current regulations regarding pets in the monument area.

The Reds Meadow Road is subject to seasonal closures, typically from October to June, due to snow and ice. The best time to cycle is during the operating season, generally summer and early fall. However, be aware that between 11 AM and 4 PM, riding into the valley is not recommended due to heavy vehicle and shuttle traffic. Early mornings are ideal for a more peaceful ride.

Biking down to Devil's Postpile is generally free. However, if you opt to take the shuttle bus back up to Mammoth Mountain, a transportation fee will apply. There may also be an entrance fee to the Devil's Postpile National Monument itself, which you can confirm on the NPS website.

The return journey is a significant uphill climb. The descent into Devil's Postpile involves a loss of about 2,000 feet over 6.5 miles, meaning the return is a tough ascent. The last 2.5 miles are particularly steep, and the high elevation (topping out at 9,170 feet) can make the climb more difficult due to thinner air, requiring very good fitness.

The route primarily follows the paved Reds Meadow Road, which is narrow, winding, and steep in sections. You'll experience an initial descent from Minaret Vista with immediate views of the Minarets, pass through pretty woods, and encounter rolling hills. The scenery includes breathtaking vistas of the Eastern Sierras, jagged stone peaks, and canyons. The destination features unique hexagonal basalt columns at Devil's Postpile and the 101-foot Rainbow Falls.

Starting from Mammoth Mountain Resort, you'll descend towards Starkweather Lake and eventually reach the Devil's Postpile National Monument Ranger Station. Beyond the monument itself, don't miss Rainbow Falls, known for the rainbows that form in its mist on sunny days.

Yes, cyclists should be cautious due to the narrow, winding road, potential debris, and other vehicles, including large RVs, stock trailers, and shuttle buses. The speed limit is 15 mph for all traffic, and downhill traffic must yield to uphill traffic. Ensuring your brakes are in good condition before the descent is crucial. Helmets are recommended for all riders and required for those under 18.

Generally, mountain biking is not permitted on trails within Devil's Postpile National Monument. There are a few exceptions on specific trails, but usually only after the shuttle buses have stopped running for the season. The primary cycling route is the paved Reds Meadow Road.

Yes, while primarily on Reds Meadow Road, the route also passes through sections of the Starkweather Lake Trail, Sotcher Lake Feeder Trail, Beach Cruiser, Wildflower Loop Trail, and Minaret Vista Trail.

The ride takes place at a high altitude, topping out at 9,170 feet. This high elevation can significantly impact physical exertion, especially during the uphill sections, due to thinner air. It's important to be aware of this and pace yourself accordingly.