<Tr> <Th> GNIS feature ID </Th> <Td> 1362162 </Td> </Tr> <Tr> <Th> Website </Th> <Td> ci.marble-falls.tx.us </Td> </Tr> <P> Marble Falls is a city in Burnet County, Texas, United States . As of the 2016 United States Census, the city population was 7,154 . It is about 58 miles (93 km) northwest of downtown Austin and 85 miles (137 km) north of San Antonio . </P> <P> Lake Marble Falls is part of the Highland Lakes on the Colorado River, the largest chain of lakes in Texas . It hosts one of the largest drag boat races in the United States each August . </P>

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