Summer Trollstice – Thursday, June 21  6-9 PM   RAIN OR SHINE

Celebrate the solstice in style with vibrant flowers, groovy tunes, mouth-watering summer cocktails and seasonal foods from Mt. Horeb – the Troll Capital of the World featuring: Bistro 101, Grumpy Troll Brew Pub, Schubert’s Restaurant, Sunn Cafè, and Sjolinds Chocolate House. Join us for an enchanting stroll through the gardens, sampling local food and beverages along the way.  Tour the cave to discover some subterranean surprises including live music in the Cave by John Red Beard. There is no better way to cap off this celebration of our planetary axis reaching for the sun than with live music by The Earthlings and cash bar.

The Earthlings are a Madison music and arts collective with local Mt. Horeb roots. They combine diverse eras of electronic sonic rock together with a laid back psychedelic indie emphasis, euphoric space and positive vibrations from the 60’s, early 70’s and 90’s. Instruments include vocals, guitar, keyboards, bass, dulcimer, sampler, bell kit, aux percussion, theremin and drums.


Tuesday Topics – Focus on Fossils Tour

Your guide will teach you about our limestone bedrock and authentic fossils in the cave that are not featured on regular tours. After the tour receive a FREE bag of Fossil Sluice rough to mine for fossils and and go home with your very own fossil collection!


Focus on Fossils Tour – Tuesday, June 19, 6PM   BUY TICKETS

Focus on Fossils Tour – Tuesday, June 26, 6PM   BUY TICKETS


Year Long Calendar of Annual Special Events:

January: Come in from the cold and see why people have taken shelter in caves for millennia. Natures heating system keeps the Cave of the Mounds at a constant comfortable temperature all winter long. Enter the Earth! for Groundhog day and learn more with interactive displays and activities. While you are in the area, downhill ski or snowboard at Tyrol Basin Ski Area or explore the extensive cross country ski trails at Blue Mound State Park.

February: Love on the Rocks! Do something unique and memorable this Valentine’s Day Weekend! Special evening candlelit cave tours just for couples (21 and older) include adult beverages and hors d’oeuvres.  Find a unique natural gift for your special someone in our amazing Rock & Fossil Shop.  FREE family-friendly activities will be available during the day in our beautiful Visitor Center.

March: Spring break down under! Bring your family to visit Cave of the Mounds and welcome spring back to Wisconsin. We are open daily and our extended hours begin March 15th. Also, the House on the Rock begins their season this month.

April: Celebrate Earth Days with a visit inside of the earth! See the first blossoms of the year as bulbs explode into bloom. Lucky visitors might be onsite to watch as we burn our prairie. To learn about annual Scout Events, contact

May: Our summer season begins Memorial Day weekend! Bring the family for a tour and a picnic, or grab some lunch from our seasonal snack bar. See our spring flowers bursting into color and search for caterpillars and chrysalis.

June: We are proud to offer interpretive Educational Programs for the whole family! Extend your tour underground & dig deeper into the history and science of Cave of the Mounds and Wisconsin’s unique geology. One of our experienced instructors will guide you & your family through our fun & educational programs. You, too, can impress your friends by learning to use the word “speleology” correctly!

July: Caves are cool! Beat the heat with nature’s air conditioning. As the summer heats up, the constant cool temperature of the cave provides a rare experience and opportunity to cool off and take in the natural geologic wonder of Wisconsin – below ground! Also, take a stroll down the Trollway and enjoy the Mount Horeb Annual Art Fair.

August: Round up those flashlights and grab the family – come celebrate the discovery of Cave of the Mounds! Every year our staff puts on their best in honor of the Cave’s Anniversary of Discovery. On August 4th, 1939 the cave was discovered during a routine quarry blast. Join us as we celebrate that explosive event during Discovery Days on the Saturday & Sunday each year closest to our anniversary. Don’t miss the fun both above and below ground!

September: After you enjoy the colors below ground, gaze at the splendor of prairie wildflowers, autumn leaves and butterflies on our park grounds. Enjoy more fall colors as you drive though the rolling hills of Southwest Wisconsin’s unique driftless area.

October: Don’t be afraid of the dark – join us at the end of October for HOLLOW-een! Free gemstone treats await costumed youngsters wandering the hollows of the Cave! This family event offers the beauty of a candlelit cave experience, free crafts for kids, story times, scavenger hunt trail walks and more! Special treat stops for crystals and fossils inside the warm, well lit Cave environment help you to enjoy a family friendly (sugar-free!) Halloween.

November: Cave of the Mounds is open for tours and group programs all year ’round! In the winter, our constant temperature and high humidity make the cave environment feel balmy. A great place to bring family & friends visiting for the holidays. Beat the crowds – and the cold – with an underground adventure!

December: Discover the unique acoustics found underground! The annual Caroling at the Cave offers visitors good cheer through a serenade by local music groups. This charity event is standing room only with limited seating options. Also back by popular demand is the Sing-Along Cave tour. Holiday shoppers will enjoy extended hours in our amazing Rock & Fossil Shop with unique natural gifts for that someone special on your list. Seasonal refreshments will be available. Call 608-437-3038 for more information