<Tr> <Td> Patrick--Carroll county line </Td> <Td> Willis Gap </Td> <Th> 192.1 </Th> <Td> 309.2 </Td> <Td_colspan="1"> SR 771 (Willis Gap Road) </Td> <Td> </Td> </Tr> <Tr> <Td> Carroll </Td> <Td> ​ </Td> <Th> 199.0 </Th> <Td> 320.3 </Td> <Td_colspan="1"> SR 608 (Lightning Ridge Road) </Td> <Td> </Td> </Tr> <Tr> <Td> ​ </Td> <Th> 199.2 </Th> <Td> 320.6 </Td> <Td_colspan="1"> SR 608 (Ranger Road) </Td> <Td> </Td> </Tr> <Tr> <Td> Fancy Gap </Td> <Th> 199.4 </Th> <Td> 320.9 </Td> <Td_colspan="1"> US 52 to I - 77--Mt . Airy, Hillsville </Td> <Td> Two - quadrant interchange </Td> </Tr>

Where is the highest elevation on the blue ridge parkway