Blair Springs Hollow Trail
What to Expect
Safety Advisory
Seasonal springs can make sections of the trail slick and muddy, especially after rain — trekking poles help on the downhill stretches where wet limestone gets genuinely treacherous.
Ticks are aggressive in the hollow from late spring through fall; do a thorough check after your hike, especially along sock lines and behind knees.
Trail Details
Pro Tips
Start from the backcountry trailhead off Mammoth Cave Parkway — parking is limited to a handful of spots, so arriving before mid-morning on weekends guarantees you a space and near-total solitude.
The trail surface is uneven limestone and packed dirt with exposed roots, so ankle-supporting boots will save you grief — trail runners are asking for a rolled ankle here.
Bring a wildflower field guide if you're hiking between April and June; the hollow shelters trillium, bloodroot, and Virginia bluebells that most visitors never see because they're underground.