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Crystal Cave, Spring Valley

#8 of 57 in Nature in Wisconsin
Crystal Cave is Wisconsin’s longest known cave. Crystal Cave located in Wisconsin's Pierce County, less than a mile west of Spring Valley on State Highway 29. Discovered by accident in 1881 by William Vanasse, Crystal Cave is a multi-level solutional cave formed in dolomite bedrock located in the Prairie du Chien Group. The dolomite was formed approximately 485 million years ago in the lower Ordovician Period when a warm shallow ocean covered much of Wisconsin and Minnesota.OverviewThe cave is accessed by a series of steps and ramps that allow visitors to descend over 70 feet. Stalactites, stalagmites and rippling flowstone can be seen hanging from the ceiling or covering the ledges of the cave.During the school year, the cave is a popular destination for tourists and school field trips.
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TripAdvisor Traveler Rating
217 reviews
  • August 13, 2017
    Well worth the trip! The tour was very informative and really interesting. Our tour guide was well spoken, friendly and easy to listen to! A great day trip!  more »
  • August 12, 2017
    My girlfriend and I went to the flash light tour and it was pretty fun! We did total darkness and silence.  more »
  • August 12, 2017
    We've gone to Crystal Cave for more than 30 years, now bringing the grand kids too. We all enjoy it, no matter how many times we've gone there. However in recent years, the cost for a family to tour i...  more »
  • July 3, 2017
    Nice little cave, perfect for a few hours of adventure with the kids. A bit pricey, but service is great and all is well maintained. The "mining" option was also fun. The small $6.98 bag came with a lot of big gems. Well worth it.
  • July 1, 2017
    We were driving through and I thought it would be the perfect excursion for my 2 kids (age 6&9). The kids loved it. We drove up and there was much more to do than just the cave, but the cave was definately the star. Our tour guide had just the right level of enthusiasm mixed with knowledge and patience for the barrage of questions my kids threw at her. In the words of my 9 year old "the cave was really cool"! Afterwards we checked out the panning for gems. The amount and size of the gems were certainly better than ones I've seen anywhere else. There were also hiking trails but unfortunately we ran out of time and were unable to check them out. All in all the cave is definitely worth a visit as a destination or a stop along the way as we did.
  • May 31, 2017
    Loved the cave, i thought it was very nice to see the stalagmites and stalactites, and the stories they told about a rock formation that looks like a boat engine. Most of all, knowing that the Trilobite is the States fossil is nice and the way you could see the flint and iron in the cave walls were just amazing!!! I'd love to come back with my family and just enjoy the experience again.
  • June 30, 2017
    If your in the area the tour is absolutely worth it. The tour guide was fantastic. She was engaging and knowledgeable. The caves were incredible.
  • June 16, 2017
    Had a fun time, lots of children so might avoid if you are child averse. The guide was great, super knowledgeable about not just this caves but caves in general. Would recommend for a day trip.

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