Lewis & Clark Caverns State Park
4.7(2.2K)google
4.0(2)yelp
Guided TourGuided Tour OnlyHikingVisitor CenterIndoorOutdoorAdventurousCaveGeology
Overview
Lewis and Clark Caverns State Park is a 3,000-acre (1,200 ha) public recreation and nature preservation area located twelve miles (19 km) east of Whitehall in Jefferson County, Montana. The state park includes two visitor centers, ten miles of hiking trails, a campground, and its namesake limestone caverns. The Lewis and Clark Caverns Historic District was placed on the National Register of Historic Places in 2018.
Practical Info
Every dayOpen 24 hours
Suggested Duration2.5-4 hours
Best TimeThe historic underground limestone cavern system is open for interior guided tours seasonally from May 1 through September 30. Booking the earliest morning Classic Tour at 9:30 AM during July or August is highly advised; this timing shields you from blistering afternoon surface temperatures as you descend into the subterranean palace containing vast mazes of stalactites and stalagmites held at a constant 50°F year-round.
Getting TherePerched along highway MT-2 between Whitehall and Three Forks. Driving is the exclusive means of transit: from I-90, take Exit 256 (Cardwell), follow highway MT-2 East for approximately 10 miles following the prominent park mountain emblems, and turn into the lower visitor parking fields. Note that accessing the cavern entrance cave requires a mandatory, uphill 0.75-mile alpine hike straight from the ticket counter.
Travel Tips
- Cave entries are restricted to guided operations from May to September; out-of-state rigs require an entrance pass, and a steep, unshaded 0.75-mile uphill trek precedes the cave mouth.
- Cave trails remain at a cool 50°F; to block the spread of White-nose Syndrome affecting local bat populations, gear or footwear previously used in other caves is strictly prohibited.
- The route forces low duck-walks and physical rock sliding; traditional framed child backpack carriers are entirely banned inside, and the tight geography risks triggering claustrophobia.
Reviews
Positive
- An incredibly unique underground geological wonder! The massive limestone caverns are packed with spectacular stalactites, stalagmites, and helictites, offering unrivaled visual impact.
- The ranger-led cave tour delivers extreme quality; docents are professional, telling geology and discovery history vividly, with rigorous crowd control and safety enforcement.
- The entry pass is very cheap and reasonable, an excellent value! The surface features a tidy modern center, clean restrooms, and generous shaded picnic spots with awnings.
- Parking spaces are safely spaced; because strict group capacity caps are enforced, the cave interior features zero chaotic crowding, letting you fully enjoy the sacred quiet vibe.
Heads up
- To enter, you must first hike 0.75 miles up a sunny, gravelly mountain trail to the cave mouth; under the blazing summer midday sun, this uphill approach is blistering hot.
- Cavern passageways are naturally very tight, low-ceilinged, and extremely slick from moisture; regular ducking and crawling are required, leaving it completely wheelchair-inaccessible.
- Tucked inside a remote canyon cliffside, cell signals are dead. Inside, to protect fragile cave ecosystems and hibernating bats, flash photography is strictly banned under security.
- All live narratives, safety boards, and history plaques are 100% in English with zero multilingual folders, creating a steep barrier for international tourists with language gaps.