<Table> <Tr> <Td> </Td> <Td> This article is written like a travel guide rather than an encyclopedic description of the subject . Please help improve it by rewriting it in an encyclopedic style . If a travel guide is intended, use of Wikivoyage is strongly suggested . (February 2011) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This article is written like a travel guide rather than an encyclopedic description of the subject . Please help improve it by rewriting it in an encyclopedic style . If a travel guide is intended, use of Wikivoyage is strongly suggested . (February 2011) </Td> </Tr> <P> Hamilton Pool Preserve is a natural pool that was created when the dome of an underground river collapsed due to massive erosion thousands of years ago . The pool is located about 23 miles (37 km) west of Austin, Texas off Highway 71 . Since the 1960s, Hamilton Pool has been a popular summer swimming spot for Austin visitors and residents . Hamilton Pool Preserve consists of 232 acres (0.94 km) of protected natural habitat featuring a jade green pool into which a 50 - foot (15 m) waterfall flows . </P> <P> The pool is surrounded by large slabs of limestone that rest by the water's edge; 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 Ashe juniper (cedar) uplands of the preserve are home to the endangered golden - cheeked warbler . </P>

Where is the hamilton pool preserve in texas