Jefferson
Trail Running Calendar near Jefferson 2026-2027
Explore the top trail runs near Jefferson 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.
May 2027
A multi-day timed running festival at the Sussex County Fairgrounds with a certified 1-mile loop, options from 6 to 144 hours plus Marathon and 50K, night lighting, central aid station, camping and electronic lap timing.
A technical mountain trail race in northern New Jersey offering a 50K with over 7000 ft gain plus 10 mile and 5 mile options, map requirements for the 50K, mandatory gear checks, and aid stations on the longer courses.
July 2027
Timed 3, 6 and 12 hour trail party at South Mountain Reservation with four randomized loops and fundraising for Bigger Than The Trail.
August 2027
Trail event at Stokes State Forest on August 22, 2027 offering 5K, 10K, 10K ruck, and a 17 mile option plus military discounts and a hardship entry.
September 2027
Multi-day trail festival at Wawayanda State Park offering races from 1 mile to 100 miles, timed events, panels, film screening and free camping.
October 2027
Trail races at Harriman State Park in Tuxedo New York featuring a 10K and a 13.1 mile course, with registration supporting trail maintenance.
November 2027
Trail races at South Mountain Reservation in West Orange, NJ offering distances from a kids mile to 50K, a hardship entry option, and support for Bigger Than The Trail.