A look at man-made Lake Lure reveals a flat area with several buildings. This is a tiny version of the well-known Mississippi Delta that the river has slowly built into the lake. Water, coming out of a narrow stream channel, loses its velocity when entering a lake or the ocean, and cannot carry its sediment load any more. A large block of Henderson Gneiss separated along its horizontal foliation plane and fell. While you enjoy the view, you might contemplate rocks and how they came about.
Geologists classify rocks as igneous, sedimentary, or metamorphic.
Sedimentary rocks are layered and hardened erosional deposits of water and wind. Metamorphic rocks have been altered by high pressure, heat, and changed chemical environments. The interesting aspect is that any one of these rock types may become any of the others. Each of these rocks can be eroded and washed into the sea and become a sedimentary rock. Any rock can be buried beneath the Earth's surface, melted to magma, and turn into igneous rocks.