50K ultramarathons in New York, United States

Rugged southern trails with radical elevation changes, tough terrain, creek crossings, swamps, rocks, and roots at Newbsanity Adventure Center

Wooded trails through Ward Pound Ridge Reservation, technical singletrack and carriage roads, 50K with 4,000 ft or 50-mile with 7,000 ft elevation gain

Mix of fast dirt roads and technical singletrack with long climbs, flowy descents, and lake views through Fahnestock State Park in the Hudson Valley

Scenic lakeside loops on well-maintained trails and dirt roads, steady flat sections with occasional roots, plus upland forest and meadow circuits with varied,

Challenging marathon and 50K courses through Thacher Park’s tranquil north and south trails, featuring escarpment climbs and scenic loops

12 hilly loops in Forest Park, with constant ups and downs and repeated tough terrain for a demanding test of endurance and focus.

Remote Adirondack Park course on rugged trails between Harrisburg Lake and Hope Falls, including East Stony Creek and Willis Lake paths through Wilcox Lake Wild

Steep climbs and descents, substantial elevation changes, varied trail surfaces, sunrise views, scenic forest singletrack, and a challenging loop format

Scenic 50K in the southeastern Adirondacks, with packed dirt snowmobile trails and a smooth, natural surface through Old Forge.

Three-loop course on truck and horse trails in Charles E Baker State Forest, over 4,600 feet of elevation gain, 9-hour cutoff, loop check-ins required.

50K mountain course on Lake George’s scenic shores, five summit ascents, 9,000 feet of elevation change, rugged terrain, and limited exit points

10.48-mile pine barrens trail loop in Rocky Point, with ultramarathon distances from 50K to 150 miles and flexible start times

Scenic road loop circling a Finger Lake, mostly flat to rolling terrain with challenging climbs including the renowned Bopple Hill

Challenging 50k or 50-mile courses with arduous elevation gains and vibrant fall foliage in a scenic park setting

Scenic Allegany State Park route featuring groomed and single-track trails, rolling hills, challenging elevation, and views of valleys and forests

Looped 50k and 100k courses at Red Wing Recreation with 1,000 feet of elevation gain per 10k lap; support and aid stations throughout

Repeated 10K trail loops at Red Wing Recreation, with steady climbing: 50K with ~5,000 ft gain, 100K with ~1,000 ft per lap.

Scenic loops in Mendon Ponds Park with rolling hills, 800–1000 feet of climb per 10 km, doubletrack and singletrack, and a short rocky downhill

Looped ultra on Staten Island singletrack, winding through Greenbelt’s remote valleys, historic parks, and lush woodlands with minimal road crossings

50K and 50-mile road ultra on repeated 3.33-mile Prospect Park loops, with a spectator-friendly format and frequent aid access