Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.
Doug: Winter snows are a major source of water. Freezing, thawing and frost-wedging are probably some of the major agents of change here in the park. As that water expands, it cracks the rocks apart. This is what probably causes the collapse some of the lava tubes, as you get this cross-wedging with sealing blocks.
