Rocks on the shore of Texas’ Lake Lavon.
The rocky riverbed of the Paluxy River in Texas’ Dinosaur Valley State Park.
Gulf of Mexico waves splash over granite blocks acting as breakwaters along the Galveston, Texas, beach.
Detail of volcanic basalt flows near Inkom, Idaho.
Waves gently lap against a rock as the sun rises on Texas’ Lake Lavon.
A waterfall cascades down the tree-covered rocky walls of Alaska’s Tracy Arm Fjord.
Moss-covered rocks in a stream at the Great Smoky Mountains National Park, Tennessee.