Jefferson
Trail Running Calendar near Jefferson 2026-2027
Explore the top trail runs near Jefferson for 2026-2027! We've gathered 40 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
October 2026
Obstacle course weekend at Sunflower Valley Farm in New Hampton NY with Sprint, Super and Kids races plus an obstacle workshop and Hurricane Heat formats.
November 2026
A community 5K and 1 Mile walk at Central Park of Morris County on November 8, 2026, with in-person and virtual options supporting local housing services.
10K and 5K trail runs at Kittatinny's Valley State Park on November 8, 2026 to benefit a free mammography program, age 15 and up, timing by Compuscore.
Experience the diverse terrain of South Mountain Reservation with a looped trail race offering 5K, 10K, and half marathon distances. Enjoy a mix of single track and fire roads with support provided at regular aid stations.
A 5 mile loop trail race at Lewis Morris Park in Morristown with a 2.5 hour time limit, capped at 120 runners, featuring reusable cups and hemp bibs.
Thanksgiving morning 5K and 1 mile walk at Rock Ridge Golf Course in Hackettstown, with shirts for the first 200, medals for all, and proceeds to student scholarships.
Looped trail event at South Mountain Reservation on Nov 28 2026 offering distances from a Kids 1M up to a 50K with aid, adaptive support, and a cupless policy.
December 2026
Trail races at South Mountain Reservation feature 5K, 10K and 13.1 miles on looped courses over fire roads, single track, hills and pavement, with aid about every three miles and race day registration available.
A holiday 5K and 1-mile walk at ShawneeCraft Brewery on December 12, 2026, with chip timing, awards, a beanie, a beer, and post-race music.
Trail 3.1 and 6.2 mile events in Morris Plains with hot cocoa at the finish and proceeds benefiting St. Jude Children's Research Hospital.
Eight Crazy Hours on December 13, 2026 gives participants up to eight hours to run or walk a two mile loop at Saddle River County Park.
January 2027
Trail races at South Mountain Reservation include 5K, 10K and 13.1 mile looped courses with aid stations every 3 miles. Courses use fire roads, single track, hills and some pavement and offer advance and day-of registration.
A fixed-time trail party in West Orange on January 30, 2027 featuring a 5K loop with 3-hour, 6-hour and ruck divisions, fundraising for the South Mountain Conservancy.
Snowshoe event at Mountain Creek on January 30, 2027 offering a 5 km ridge course and a not timed 1 mile fun option.
February 2027
Winter trail running at South Mountain Reservation with 10 mile, 20 mile, 50K and 50 mile options on a rugged 10 mile loop and three aid stations per loop.
Trail run and hike in the Mahlon Dickerson Reservation with 5, 10 and 15 mile woodland routes, trail markers, finisher items and donuts.