Discover the fascinating world of geology here.
Newberry National Volcanic Monument has over 55,000 acres of land where you can see all sorts of volcanic formations. The land offers plenty of space for biking, fishing, hiking, and kayaking as well. Some of the region is covered with the after-effects of a highly destructive lava flow, which can be seen near the Lava Lands Visitor Center. Other parts of the land, like the Big Obsidian Flow, were affected by a slow and somewhat less destructive lava flow.
The Lava River Cave is one of the most popular sites at the monument. It was once filled with lava, but now the ground is filled with volcanic ash, making various parts of the cave somewhat sandy. They have metal steps with hand railings for guests to go down into the tunnel safely. Keep in mind that the cave is dark. Two light sources are required to enter. There are flashlights and headlamps available to rent if you need them. The cave stays at a constant 42 degrees, so also be sure to bring a jacket with you. Back in the day, Native Americans would use it as a place to store food. We know this from obsidian shards that were discovered inside. Please be aware that the tunnel is home to bats, so appropriate precautions are required to enter to protect these creatures.
Another attraction to visit is called the Lava Cast Forest. You can hike a short, 0.9-mile trail where you can see casts of trees preserved and encased by lava. Your visit to this volcanic monument will certainly leave a lasting impression on you for years to come.