<Table> <Tr> <Th_colspan="2"> Great Smoky Mountains </Th> </Tr> <Tr> <Td_colspan="2"> The Smoky Mountains, viewed from atop Mount Le Conte, in April 2007 . </Td> </Tr> <Tr> <Th_colspan="2"> Highest point </Th> </Tr> <Tr> <Th> Peak </Th> <Td> Clingmans Dome </Td> </Tr> <Tr> <Th> Elevation </Th> <Td> 6,643 ft (2,025 m) </Td> </Tr> <Tr> <Th> Coordinates </Th> <Td> 35 ° 33 ′ 46" N 83 ° 29 ′ 55" W ﻿ / ﻿ 35.56278 ° N 83.49861 ° W ﻿ / 35.56278; - 83.49861 Coordinates: 35 ° 33 ′ 46" N 83 ° 29 ′ 55" W ﻿ / ﻿ 35.56278 ° N 83.49861 ° W ﻿ / 35.56278; - 83.49861 </Td> </Tr> <Tr> <Th_colspan="2"> Geography </Th> </Tr> <Tr> <Td_colspan="2"> Appalachian Mountain system </Td> </Tr> <Tr> <Th> Country </Th> <Td> United States </Td> </Tr> <Tr> <Th> States </Th> <Td> Tennessee and North Carolina </Td> </Tr> <Tr> <Th> Parent range </Th> <Td> Blue Ridge Mountains </Td> </Tr> <Tr> <Th> Borders on </Th> <Td> Bald Mountains, Unicoi Mountains, Plott Balsams </Td> </Tr> <Tr> <Th_colspan="2"> Geology </Th> </Tr> <Tr> <Th> Orogeny </Th> <Td> Alleghenian </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Great Smoky Mountains </Th> </Tr>

What is the difference between the blue ridge mountains and the smoky mountains
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