waterpocket

**Definition:** A natural depression in sandstone that collects and holds rainwater — similar to a tinaja but often larger and occurring on slickrock surfaces rather than in canyon bottoms. Waterpockets can be the size of bathtubs or swimming pools, and in the desert they are oases in stone. Capitol Reef National Park was originally called Wayne Wonderland but was renamed for the Waterpocket Fold — a massive geologic formation lined with thousands of these basins.