The Cave Guide

Rushmore Cave

Keystone, SD
58°F
inside, all year
1 hr
on the main tour

A cave 5 miles east of Keystone at Rush Mountain Adventure Park, with a one-hour guided walking tour at 58°F and a belly-crawling spelunking tour.

The story

Rushmore Cave is the original attraction at Rush Mountain Adventure Park. Adventure seekers have been exploring the cave for over 90 years. Cavers continue to seek out new passages and are discovering new areas within the cave still today.

History source: rushmtn.com.

What you'll see

  • BIG ROOM
  • Stalactite rooms

Tickets and timing

How long it takes
About 1 hour (walking tour)
Hours
Walking tours run regularly in summer; last tour an hour before closing.
Booking
No reservations for the walking tour. The spelunking tour (5 people max) is best booked ahead: 605-255-4384.

Getting around underground

The walk
Many steps, uneven ground and some stooping.
Strollers
A front carrier is recommended for infants.

Dogs, weather and what to wear

Temperature
58°F year-round

Good to know

Best time to go
During the summer season, cave tours leave regularly so come at your convenience, no reservations required. The last regular cave tour leaves 1 hour before closing.
Food and drink
Food available at Sparky’s Snackitorium.
On site
gift shop, snack bar, gem mining, mountain coaster, zipline ride, 7D dark ride, challenge/ropes course

Getting there

13622 Hwy 40, Keystone, SD 57751

Directions in Google Maps

Distances are straight-line from each city center.

Before you go

  • Pick up your cave ticket as soon as you arrive.
  • Bring sturdy shoes and a light jacket.

Questions people ask

How long does a visit to Rushmore Cave take?

About 1 hour (walking tour)

How cold is it inside Rushmore Cave?

58°F year-round.

Do you need to book Rushmore Cave in advance?

No reservations for the walking tour. The spelunking tour (5 people max) is best booked ahead: 605-255-4384.

Where is Rushmore Cave?

13622 Hwy 40, Keystone, SD 57751

Listed in: wild caving tours

Checked on 2026-10-22 against rushmtn.com (Rushmore Cave page). Prices and hours change, so confirm on the official site before you drive out.

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