Other Notable Highs, Lows and In-Betweens of the U.S.
|Highest point: Mount McKinley, Alaska ||20,320 ft. (6,198 m)|
|Lowest point: Death Valley, Calif. ||282 ft. (86 m) below sea level|
|Approximate mean elevation ||2,500 ft. (763 m)|
|Points farthest apart (50 states): Log Point, Elliot Key, Fla.,|
and Kure Island, Hawaii
|5,859 mi. (9,429 km)|
|Geographic center (50 states): in Butte County, S.D. (west of Castle Rock) ||44°58'N lat.103°46'W long.|
|Geographic center (48 conterminous states): in Smith County, Kan. (near Lebanon) ||39°50'N lat. 98°35'W long.|
|Boundaries: || |
| Between Alaska and Canada ||1,538 mi. (2,475 km)|
| Between the 48 conterminous states and Canada (incl. the Great Lakes) ||3,987 mi. (6,416 km)|
| Between the United States and Mexico ||1,933 mi. (3,111 km)|
Source: U.S. Geological Survey.
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