The Big Burro 24 Hour is an unapologetically rugged trail race that unfolds on the winding Maple Hills Trail System near Big Bear, California. This endurance challenge invites runners to push their limits over a grueling yet scenic course for 24 hours straight. Starting at sunset on Friday evening and finishing as the sun dips below the horizon again Saturday night, participants will navigate an approximate five-mile loop that showcases the best of mountain trail running. The route weaves through varied terrain featuring runnable singletrack trails, steep climbs peppered with rocky sections, and exhilarating descents. The event's basecamp serves as a lively hub for runners to refuel at aid stations equipped with essential supplies, medical support, and timing services. Crews can provide assistance from the Start/Finish area but must stay within designated boundaries throughout the race. Beyond its physical demands, The Big Burro 24 Hour fosters a tight-knit community spirit among competitors who share their experiences through sleepless nights and dawn breaks over two days. This sense of camaraderie is further cemented by post-race celebrations where top performers are honored with awards for overall wins, the prestigious Burro Hundred achievement (completing 100 miles), and course records. For those looking to challenge themselves against established benchmarks, The Big Burro 24 Hour sets new standards each year. Runners will be aiming not only to complete as many laps as possible but also to secure their place in the annals of trail running history by breaking existing records or becoming part of an exclusive club for completing the arduous 100-mile challenge. Join this mountain ultra and immerse yourself in a weekend filled with raw beauty, relentless effort, and heartfelt camaraderie. The Big Burro 24 Hour offers more than just miles; it delivers an unforgettable experience that encapsulates what trail running is all about. The race takes place on April 30 – May 1, 2027 at the Maple Hills Trail System in Big Bear, CA.
Races Offered
24hrs
Apr 30, 2027
straighten
Distance —
24 Hours
terrain
Type —
Running
timer
19:00
sell
$185.00
Weather History
These values represent the 3-year monthly averages for April in Big Bear City.
thermostatTemperature
3.0° / 13.1°
wb_sunnyFeels like
-1.4° / 8.3°
light_mode
Avg sunshine hours
12h 27m
water_drop
Avg rainfall
0.1 mm
ac_unit
Avg snowfall
—
air
Avg wind speed
8.5 km/h (Light breeze)
opacity
Sweat loss rate
Low
terrain
Course conditions
Firm and slightly soft
sunny
Max UV Index
Moderate (5.0)
humidity_mid
Humidity
41.3%
wb_twilight
Sunrise
06:14
nightlight
Sunset
19:18
About Big Bear City
Learn more about the host city, Big Bear City.
Big Bear City is an unincorporated community and census-designated place in San Bernardino County, California, United States along the east shore of Big Bear Lake and surrounded by the San Bernardino National Forest. It is 27 miles (43 km) northeast of the city of San Bernardino, and immediately east of the incorporated city of Big Bear Lake. Its population was 12,738 at the 2020 census, up from 12,304 at the 2010 census. Big Bear City is mostly residential, with smaller houses and cabins laid out in typical square block fashion. Big Bear is on the Pacific Crest Trail.
