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Missouri River, Sully County, South Dakota, 64072, United States of America (44.60421 -100.63558)
Elevations in the watershed vary widely, ranging from just over 400 feet (120 m) at the Missouri's mouth to the 14,293-foot (4,357 m) summit of Mount Lincoln in central Colorado. The river drops 8,626 feet (2,629 m) from Brower's Spring, the farthest source. Although the plains of the watershed have extremely little local vertical relief, the land rises about 10 feet per mile (1.9 m/km) from east to west. The elevation is less than 500 feet (150 m) at the eastern border of the watershed, but is over 3,000 feet (910 m) above sea level in many places at the base of the Rockies.
Chinatown, Deadwood, Lawrence County, South Dakota, 57732, United States of America (44.37915 -103.72131)
Coordinates: 44.35915 -103.74131 44.39915 -103.70131 - Minimum elevation: 4,363 ft - Maximum elevation: 5,726 ft - Average elevation: 5,026 ft
North Sioux City, Union County, South Dakota, United States of America (42.52722 -96.48309)
Coordinates: 42.52058 -96.53129 42.55381 -96.47771 - Minimum elevation: 1,072 ft - Maximum elevation: 1,428 ft - Average elevation: 1,129 ft