Sleeping Giant Trail Runs

MAR
29
2026
A trail race at Sleeping Giant State Park in Hamden, CT, built on a 25K loop with a 50K two-loop option. The course features technical singletrack, steep scrambles and an ascent to the Observation Tower.
Sun 29 Mar 2026
50 kilometers 25 kilometers

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Sleeping Giant Trail Runs (Hamden, CT)

Sleeping Giant Trail Runs takes place at Sleeping Giant State Park and uses a 25K loop as the core course. The park contains more than 30 miles of trails, including smooth carriage roads and technical, rocky, winding singletrack. The 25K loop accounts for more than 3,000 feet of vertical gain.

Each loop starts and finishes at the pavilion. The first five miles are mostly runnable rolling singletrack with a few small rock scrambles. The route then includes a steep head wall rock scramble gaining roughly 500 feet in 0.3 miles, mixed technical ups and downs, the Yellow Trail toward the Chestnut Trailhead, and a central section that includes portions of the White Trail. The climb to the highest point follows the Quinnipiac Blue Trail to the Observation Tower, then descends the Tower Path carriage road before a short paved approach back to the pavilion.

Aid stations supply water and Hyle Hydration electrolyte drink and typical snack items. All events are cupless; participants must carry their own hydration bottle, pack, or cup. Port-a-johns are available near the start and finish. The course GPX file is provided for navigation and download is suggested. Entry fees are used to produce the event and a portion supports the Sleeping Giant Park Association. No refunds or transfers are allowed. Visit the organization's website for the most recent information.

  • 25K single loop with 3K+ vertical
  • 50K two loops of the 25K course
50 km
50k
25 km
25k