Looking for an exciting outdoor activity? Want to learn about rare salt formations?
The mounds form when spring water with dissolved mirabilite in it hits cold air, according to UGS. Mirabilite is most stable at temperatures that are below freezing which is why it forms crystal mounds. When temperatures rise the crystals dehydrate and become white, powdery and easily eroded. Because the mounds only form during specific winter conditions, it isn’t clear how long they will last, according to the park.
People who want to come see the mounds should wear waterproof shoes for the tour. Masks will be required.
Research is being conducted on the mounds so the park is asking members of the public not to damage them or remove parts of them.