River Styx Spring Trail

Dogs on a leash all year

Trail from the visitor centre down to where an underground river emerges. Dogs on a leash.

Source: National Park Service, Mammoth Cave National Park: Pets. Checked October 29, 2026.

Follow the signs at the trailhead: parks can close areas to dogs for wildlife.

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Mammoth Cave National Park: the rule in full

Leashed pets (6 feet or less) are allowed on all surface trails. Not in caves or park buildings.

Dog walks nearby

• Heritage TrailDogs on a leash all year
• Green River Bluffs TrailDogs on a leash all year
• Sloans Crossing Pond WalkDogs on a leash all year