Devils Postpile National Monument

Devils Postpile National Monument

Devils Postpile National Monument is set aside in California as a national monument so the feature at its heart can be protected and interpreted in place under National Park Service oversight. Established in 1911 by presidential proclamation, Devils Postpile National Monument protects and preserves the Devils Postpile formation, the 101-foot high Rainbow Falls, and pristine mountain scenery. The formation is a rare sight in the geologic world and ranks as one of the world's finest examples of columnar basalt.

Its' columns tower up to 60 feet and display a striking symmetry.

Because Devils Postpile National Monument is a national monument, the NPS typically organizes the visitor experience around interpretation: signs, short films, ranger talks, and exhibits that turn what you see into context.

Key Highlights

• Animals
• Climate Change
• Fire
• Forests and Woodlands
• Junior Ranger Program
• Wildlife Watching
• Front-Country Hiking

Getting There

Reaching Devils Postpile National Monument is straightforward once you know the route. Shuttle Bus: Most visitors must park at the Mammoth Mountain Ski Area and use the mandatory shuttle. The shuttle bus operates from mid-June through the Wednesday after Labor Day. By car: From U.S. Highway 395, drive 10 miles west on S.R. 203 to Minaret Vista and then another 8 miles on a paved, steep mountain road. Please note that this road is single lane for approximately 3 miles. By plane: The closest commercial airport is the Mammoth Lakes/Yosemite Airport (MMH), located on U.S. Highway 395.

By Car

Most visitors arrive by private vehicle or rental car. Road conditions vary with weather and construction, so check the park's alerts page the day before you travel. Pay attention to GPS directions in rural stretches—some apps route drivers onto unmaintained service roads rather than the signed park entrance.

Nearest Airports

Regional airports provide the most convenient access for long-distance travelers. For the most current airline service and driving distances, cross-reference flight options with the park's contact page. Budget extra drive time from any airport, especially if you arrive after dark or during winter weather.

Public Transit and Tours

Direct public transit is limited at most National Park Service sites, but guided day tours and shuttles sometimes operate from nearby cities during peak season. Rideshare options are often reliable in gateway towns but may drop off outside the park boundary rather than at specific trailheads or visitor centers.

For turn-by-turn directions and current road status, consult the park's official directions page: http://www.nps.gov/depo/planyourvisit/directions.htm.

Best Time to Visit

Weather shapes every visit. Devils Postpile National Monument is located at 7,560 feet above sea level just west of the Sierra Nevada crest. As such, it experiences typical summer weather in the Sierras. Afternoon thunderstorms are possible in July and August. Daytime temperatures can range from the mid-70s to to mid-80s (degrees Fahrenheit). Evening temperatures can drop into the low 40s (and even the low 30s in the months of September and October).

Spring (March – May)

Spring offers wildflowers, mild temperatures, and manageable crowds before the summer peak.

Summer (June – August)

Summer means longer days and fuller ranger programming, balanced by heat and higher visitation. Start early to beat both.

Fall (September – November)

Fall is often the sweet spot—cooler temperatures, sharper light for photography, and fewer visitors on trails.

Winter (December – February)

Winter brings solitude and, in many regions, a different character to the landscape. Expect reduced hours at some facilities.

Activities and Adventures

Activities at Devils Postpile National Monument reflect the character of the site. The options below are drawn from the park's current published list—confirm availability and any required reservations before planning around a specific activity.

• Astronomy — ask at the visitor center for current conditions, reservations, and any required permits.
• Stargazing — ask at the visitor center for current conditions, reservations, and any required permits.
• Biking — confirm which roads and paths allow bikes and whether rentals are available in the gateway community.
• Road Biking — confirm which roads and paths allow bikes and whether rentals are available in the gateway community.
• Camping — check campground availability and reservation windows in advance, especially on weekends and holidays.
• Car or Front Country Camping — check campground availability and reservation windows in advance, especially on weekends and holidays.
• Fishing — a state fishing license is typically required; check current regulations for species and gear limits.
• Hiking — trails range from short interpretive loops to longer, more demanding routes; match your choice to conditions and fitness.
• Front-Country Hiking — trails range from short interpretive loops to longer, more demanding routes; match your choice to conditions and fitness.
• Horse Trekking — check trail designations and any stock requirements such as certified weed-free feed.
• Horseback Riding — check trail designations and any stock requirements such as certified weed-free feed.
• Junior Ranger Program — schedules rotate seasonally; check the visitor center board on arrival for the current lineup.
• Wildlife Watching — dawn and dusk are the most productive viewing windows; bring binoculars and maintain a respectful distance.

Ranger-led programs are often the highest-value activity for first-time visitors, combining interpretation with access you might miss on your own. Check program schedules at the visitor center on arrival.

History and What to See

Devils Postpile National Monument is primarily a site of historical and cultural significance. Beyond the headline landmarks, the park preserves smaller details—inscriptions, outbuildings, period plantings, wayside exhibits—that repay an unhurried visit.

Featured interpretive themes include Animals, Climate Change, Fire, Forests and Woodlands, Coniferous Forests, Geology.

Interpretation and Programs

Ranger talks, living-history demonstrations, and self-guided audio tours bring the story to life. If your schedule allows, time your visit to catch at least one ranger-led program; the added context transforms what you see on the grounds.

Preserved Structures and Landscape

The National Park Service preserves the physical setting as faithfully as possible. Walking the grounds gives you a sense of scale—distances, sightlines, elevation—that is hard to appreciate from photos alone.

Research and Archives

Many historic sites maintain libraries, archives, or partnered research centers. If you have a specific interest, contact the park in advance; staff can often point you toward documents, oral histories, or special collections.

Lodging and Camping

Lodging strategy depends on how long you plan to stay at Devils Postpile National Monument and what you want to do when you are not at the park.

Camping

The park offers camping as a recognized activity. Reservation systems, site availability, and amenities vary by campground, so confirm current rules at the park's website before arrival. Popular sites often fill during weekends and holidays; weekday visits increase your chance of first-come, first-served spots.

Gateway Towns and Nearby Lodging

Communities close to the park offer a mix of chain hotels, independent inns, vacation rentals, and—depending on location—bed-and-breakfasts. Several California towns serve as convenient bases, with restaurants, fuel, and grocery resupply. Book well ahead for summer weekends and major holidays.

Operating Hours and Seasons

Devils Postpile National Monument: In the operating season, Devils Postpile National Monument is open 24 hours a day, 7 days a week.

The Monument usually opens in mid-June. By mid to late October, early winter storms in the High Sierra typically begin to bring snow to the area.

Essential Information

Fees and Passes

No standard entrance fee is charged. Some special programs or partner-run facilities within the park may carry their own fees, so confirm before booking anything ticketed.

Contact

• Phone: 7609342289
• Email: depo_visitor_information@nps.gov
• Official site: https://www.nps.gov/depo/index.htm

Safety

Carry water, sun protection, and layered clothing appropriate for the season. Cell coverage can be spotty in parts of the park—download offline maps before you leave your lodging. In an emergency, dial 911 or contact the nearest ranger station.

Services and Accessibility

Main visitor centers typically offer accessible restrooms, interpretive exhibits, bookstore sales, and ranger assistance. Accessibility varies by building and trail; contact the park ahead of time to discuss specific needs. Pets are often allowed on leash in designated areas only—check current rules before bringing animals.

Regulations to Know

Drones are prohibited in nearly all National Park Service units without a special permit. Metal detecting, collection of natural or cultural objects, and off-trail travel in sensitive areas are also commonly restricted. Read the signs at each trailhead and ask a ranger if you are unsure.

Monuments like Devils Postpile National Monument earn their federal designation by protecting something specific. Understanding what that is is the whole point of the visit.