Altadena
Trail Running Calendar near Altadena 2026-2027
Explore the top trail runs near Altadena for 2026-2027! We've gathered 48 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
April 2027
Timed 3, 6, and 12 hour running and walking events through Southern California's only coastal redwood grove at Carbon Canyon Regional Park.
May 2027
A looped trail event in Santa Clarita on May 1, 2027 offering multiple distances, 6 and 12 hour categories, relay teams, camping, and cupless aid station support.
A 5k through Whittier Narrows Park with tacos, beer for 21+, live mariachi and a post race festival; packet pickup occurs the day before and a 2 hour time limit applies.
A supported trail event in the Angeles National Forest featuring a 50k with 5,300 ft of vertical and a 13.1-mile half with multiple aid stations and a finish festival.
June 2027
Trail marathon relay and 8K in Griffith Park on June 6, 2027, featuring a true loop course, aid stations, festival atmosphere, chip timing and awards.
July 2027
Experience a 2-mile coastal run at Hermosa Beach featuring a challenging mix of soft and hard-packed sand as part of the International Surf Festival.
September 2027
A 7+ mile trail race up Mt Baldy in the Angeles National Forest, rising from about 6,000 to 10,064 feet and organized by San Antonio Canyon Town Hall to support the local community.