Mammoth Cave National Park

Blair Springs Hollow Trail

moderate Solitude SeekersBirdwatchingWildflower Season
1.8 mi Distance
Varies Estimated Time
Out & Back Trail Type

What to Expect

Blair Springs Hollow is one of Mammoth Cave's quieter backcountry routes, and that's exactly the point. This short but moderately challenging out-and-back drops you into a wooded hollow where the canopy closes in and the tourist crowds vanish entirely. The trail winds through mixed hardwood forest along a drainage carved by seasonal springs, with exposed limestone and root-laced sections that keep your eyes on your feet. At under two miles, it's not a long commitment, but the uneven terrain and rolling grade give it more bite than a flat cave-country stroll. You'll pass through patches of fern and wildflower in spring, and the hollow acts like a natural amplifier for birdsong. This one's made for hikers who want a taste of Mammoth Cave's surface wilderness without spending all day on trail.
Solitude SeekersBirdwatchingWildflower SeasonShort AdventuresNature Study

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

Distance 1.8 miles round-trip
Difficulty moderate
Estimated Time Varies
Trail Type Out & Back
Pets Not allowed
Season Year-round
Trailhead Blair Springs Hollow Trail

Pro Tips

Trail Tip

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.

Trail Tip

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.

Trail Tip

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.

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