Grundy Forest State Natural Area
Tennessee

Grundy Forest State Natural Area

Available Activities
  • Hiking
  • Swimming
  • Photography
  • Bird Watching

๐Ÿ†๐Ÿ†๐Ÿ†๐Ÿ† Fiery Gizzard Trail Gateway โ€” Old-growth hemlock gorge with waterfalls, the jewel of South Cumberland

Grundy Forest State Natural Area is the northern gateway to the legendary Fiery Gizzard Trail โ€” widely considered one of the finest day hikes in the southeastern United States. The natural area itself protects an old-growth hemlock and hardwood forest in a sandstone gorge carved by Fiery Gizzard Creek, with multiple waterfalls cascading over moss-draped ledges into crystal pools. The 2-mile Grundy Forest Day Loop descends into the gorge through cathedral-like hemlock groves to Blue Hole Falls โ€” a turquoise swimming hole beneath a 30-foot curtain falls.

The larger Fiery Gizzard Trail extends 12.5 miles from Grundy Forest to Foster Falls, traversing some of the most dramatic gorge scenery on the Cumberland Plateau. The trail’s unusual name reportedly comes from a campfire dinner where Davy Crockett burned his turkey gizzard.

Visitor Information

DetailInformation
LocationTracy City, TN (South Cumberland)
Entry FeeFree
Day Loop2 miles (Blue Hole Falls)
Fiery Gizzard Trail12.5 mi to Foster Falls (point-to-point)
ForestOld-growth hemlock gorge
SwimmingBlue Hole (natural pool at waterfall)

Frequently Asked Questions

Can I swim at Blue Hole?

Yes! Blue Hole is a popular natural swimming hole at the base of a 30-foot waterfall. The water is cold year-round. No lifeguard โ€” swim at your own risk. The pool is reached via the 2-mile Grundy Forest Day Loop.

Insider Tips

Day loop trail: The 2-mile Grundy Forest Day Loop is one of the finest short hikes in Tennessee โ€” following Fiery Gizzard Creek through a gorge with multiple waterfalls, swimming holes, and old-growth hemlock forest. Pro tip: The Fiery Gizzard Trail (12.3 miles) connects to the Day Loop โ€” rated one of the top 25 trails in the US by Backpacker magazine. Swimming holes: Blue Hole and Sycamore Falls are legendary summer swimming spots.

Best Time to Visit

Spring: Waterfall peak flow and wildflowers. Summer: Swimming holes and cool gorge air. Fall: Spectacular gorge foliage. Winter: Frozen waterfalls in cold spells.

Frequently Asked Questions

Where does the name “Fiery Gizzard” come from?

Legend says Davy Crockett burned his tongue on a hot turkey gizzard while camping along the creek. Whether true or not, the unusual name has stuck since the early 1800s. The Fiery Gizzard Trail is consistently rated as one of Tennessee’s best hikes โ€” the combination of waterfalls, gorge scenery, and old-growth forest is outstanding.

๐ŸŒŠ Visit Grundy Forest SNA

Gateway to the Fiery Gizzard Trail โ€” old-growth gorge, waterfalls, and Blue Hole swimming.

๐Ÿ“ TN Natural Areas

Sarah Mitchell

About the Author

Outdoor Editor & Trail Expert

Sarah Mitchell is an outdoor writer and trail researcher with over 8 years of experience exploring state parks across America. As the lead editor at AmericasStateParks.org, she has personally visited more than 200 parks in 42 states, logging thousands of trail miles and hundreds of campground nights. Sarah specializes in detailed park guides, accessibility information, and family-friendly outdoor planning. Her work focuses on helping first-time visitors feel confident and well-prepared for their state park adventures.

200+ state parks visited across 42 states | 8+ years of outdoor writing

Last updated: May 10, 2026

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