Into the Upside Down…💀 More like into OregonCavesnps! Down below in this cave system is where you can find tons of fascinating cave formations, also known as speleothems. These formations are formed through water seepage, which picks up minerals along the way, and eventually causes the build-up of calcite along the cave walls. No wonder so many myths and legends come from cave systems; these speleothems look like something out of a nightmare! #Caves #OregonCaves #Nature #Outdoors #Outside #Parks #NationalParks #Adventure #Explore #Geology 📸: NationalParkService Image: A metal walkway extends into the front of the cave entrance.