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Thunder Swamp Trail

The Thunder Swamp Trail (TST) is an 18.3-mile loop in Delaware State Forest, in southern Pike County. The main loop is bisected by PA 402, and the official trailhead is at the trail’s southern crossing of that road, about 15 miles north of Stroudsburg. The system includes a spur trail to Stillwater Natural Area; the spur adds 13.4 miles if hiked in both directions, for a total of 31.7 miles in the system. The TST traverses a mostly flat landscape, visiting many swamps and wetlands. Despite its flatness, the TST offers a challenging hike due to very rocky footway. ​

PDF maps are available for download from Delaware State Forest here, and they will mail you a copy if requested.
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  • About
    • News >
      • Hike Harrisburg Post Event Release
      • Newfoundland 2024 Trip Report
      • Newsletter Archive
      • Meet PA Hikers
      • Trail Care Stories
    • Contact
    • About KTA
    • Work For KTA
    • Strategic Plan
    • Volunteer with KTA
    • Our People
    • Our Story
    • Diversity & Inclusion
    • Press
    • Multimedia
  • GET INVOLVED
    • Advocacy >
      • Protect Hiking and Trails in Pennsylvania
      • Kids Trail Ambassador Program
    • Donate >
      • 100 Mile Challenge
      • Monthly Giving: Keep Trails Alive
      • Planned Giving: The Heritage Society
      • Giving for the Future: Endowment Fund
    • Membership
    • Events >
      • Keystone Hiking & Outdoor Weekend 2026
      • 2027 St. John Trail Care >
        • 2027 St. John Lottery Interest Form
      • Scholarships
  • GET OUTDOORS
    • CLUBS >
      • Hiking & Trail Club Resources
      • Hiking Clubs
      • KTA Grants-to-Clubs
      • Report Club Hours
    • South Central Pennsylvania Accessible Adventure Guidebook
    • Accessible Philadelphia
    • Favorite Hikes in Pennsylvania
    • KTA Gear Loaner Program
    • Trails
    • Pennsylvania Hiking Trail Trailers
    • Maps
  • Trail Care Program
    • FAQs Trail Care
    • Report a Trail Issue
    • Trail Love Events
    • KTA’s A.T. Section
    • 2026 Weekday Trail Cares
    • 2026 #19 Quehanna / Moshanna SF
    • 2026 #20 GPSP
    • 2026 #21 North Country Trail
    • 2026 #22 Donut Hole
    • 2026 #23 Sproul Loops-Kyler
    • 2026 #24 A.T. section
    • 2026 #25 T2
  • Hiking Awards
  • Store