<Table> <Tr> <Td_colspan="2"> Great Basin </Td> </Tr> <Tr> <Td_colspan="2"> Region </Td> </Tr> <Tr> <Td_colspan="2"> Relief Map with Great Basin Overlay </Td> </Tr> <Tr> <Th> Countries </Th> <Td> United States, Mexico </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> Coordinates </Th> <Td> 40 ° 40 ′ N 117 ° 40 ′ W ﻿ / ﻿ 40.667 ° N 117.667 ° W ﻿ / 40.667; - 117.667 Coordinates: 40 ° 40 ′ N 117 ° 40 ′ W ﻿ / ﻿ 40.667 ° N 117.667 ° W ﻿ / 40.667; - 117.667 </Td> </Tr> <Tr> <Th> Highest point </Th> <Td> Mount Whitney summit </Td> </Tr> <Tr> <Td> - location </Td> <Td> Sierra Nevada </Td> </Tr> <Tr> <Td> - elevation </Td> <Td> 14,505 ft (4,421.1 m) </Td> </Tr> <Tr> <Td> - coordinates </Td> <Td> 36 ° 34 ′ 42.89" N 118 ° 17 ′ 31.18" W ﻿ / ﻿ 36.5785806 ° N 118.2919944 ° W ﻿ / 36.5785806; - 118.2919944 </Td> </Tr> <Tr> <Th> Lowest point </Th> <Td> Badwater Basin </Td> </Tr> <Tr> <Td> - location </Td> <Td> Death Valley </Td> </Tr> <Tr> <Td> - elevation </Td> <Td> − 279 ft (− 85.0 m) </Td> </Tr> <Tr> <Td> - coordinates </Td> <Td> 36 ° 14 ′ 23" N 116 ° 50 ′ 5" W ﻿ / ﻿ 36.23972 ° N 116.83472 ° W ﻿ / 36.23972; - 116.83472 </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> Area </Th> <Td> 209,162 sq mi (541,727 km) GIS files used for both the acreage calculations and the overlay of the above map . </Td> </Tr> <Tr> <Td> - persistent water (average area) </Td> <Td> 4,079 sq mi (10,565 km) </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> Geology </Th> <Td> Basin and Range Province </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> GNIS code </Th> <Td> 2087988 </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> </Table> <Tr> <Td_colspan="2"> Great Basin </Td> </Tr> <Tr> <Td_colspan="2"> Region </Td> </Tr> <Tr> <Td_colspan="2"> Relief Map with Great Basin Overlay </Td> </Tr>

What is the level area of a desert basin