Caption
Located in Travis County, Texas, about 23 miles west of Austin, Hamilton Pool is a natural jade-green pool that was created when the dome of an underground river collapsed due to massive erosion thousands of years ago. About 3/4 mile upstream from its confluence with the Pedernales River, Hamilton Creek spills out over limestone outcroppings to create a 50-foot waterfall as it plunges into the head of a steep box canyon. The waterfall never completely dries up, but in dry times it does slow to a trickle keeping the pool's water level constant even during periods of drought. The pool is surrounded by huge slabs of limestone that rest by the water's edge and large stalactites grow from the ceiling high above. The ceiling and surrounding cliffs of the grotto are home to moss, maidenhair fern and Cliff Swallows. The pool is the centerpiece of the Hamilton Pool Preserve, 232 acres of protected natural habitat where the Ashe juniper (cedar) uplands of the preserve are home to the endangered golden-cheeked warbler. This view was taken near the top of the trail that circles completely around the pool and includes a close encounter with the backside of the falls.