<Tr> <Th> Land </Th> <Td> 7.5 sq mi (19.5 km) </Td> </Tr> <Tr> <Th> Water </Th> <Td> 0.0 sq mi (0.0 km) </Td> </Tr> <Tr> <Th> Elevation </Th> <Td> 6,424 ft (1,958 m) </Td> </Tr> <Tr> <Th_colspan="2"> Population (2010) </Th> </Tr>

How did las vegas nm get its name