List of longest rivers of the United States ( by main stem ) - wikipedia List of longest rivers of the United States ( by main stem ) The Mississippi drainage basin includes the Missouri and the Mississippi rivers, the two longest main - stem rivers in the United States, as well as 18 more of the rivers on this list. The Mississippi main stem is highlighted in dark blue. The main stems of 38 rivers in the United States are at least 500 miles ( 800 km ) long. The main stem is `` the primary downstream segment of a river, as contrasted to its tributaries ''. The United States Geological Survey ( USGS ) defines a main - stem segment by listing coordinates for its two end points, called the source and the mouth. Well - known rivers like the Atchafalaya, Willamette, and Susquehanna are not included in this list because their main stems are shorter than 500 miles. Seven rivers in this list cross or form international boundaries. Two -- the Yukon and Columbia rivers -- begin in Canada and flow into the United States. Three -- the Milk and Saint Lawrence rivers and the Red River of the North -- begin in the United States and flow into Canada. Of these, only the Milk River crosses the international border twice, leaving and then re-entering the United States. Two rivers, the Colorado and the Rio Grande, begin in the United States and flow into or form a border with Mexico. In addition, the drainage basins of the Mississippi and Missouri rivers extend into Canada, and the basin of the Gila River extends into Mexico. Sources report hydrological quantities with varied precision. Biologist and author Ruth Patrick, describing a table of high - discharge U.S. rivers, wrote that data on discharge, drainage area, and length varied widely among authors whose works she consulted. `` It seems, '' she said, `` that the wisest course is to regard data tables such as the present one as showing the general ranks of rivers, and not to place too much importance on minor ( 10 -- 20 % ) differences in figures. '' Contents 1 Table 2 Map 3 See also 4 Notes 5 References 6 Works cited Table The primary source for watershed and discharge data in the table below is Rivers of North America. Conflicting data from other sources, if the difference is greater than 10 percent, is reported in the notes. Discharge refers to the flow at the mouth. In the `` States, provinces, and image '' column, the superscripts `` s '' and `` m '' indicate `` source '' and `` mouth ''. Non-U.S. states appear in italics. Except in the `` States, provinces, and image '' column, abbreviations are as follows : `` km '' for `` kilometer '', `` mi '' for `` mile '', `` s '' for `` second '', `` m '' for `` meter '', and `` ft '' for `` foot ''. Key River is not entirely within the United States. Watershed is not entirely within the United States. Longest main - stem rivers of the United States # Name Mouth Length Source coordinates Mouth coordinates Watershed area Discharge States, provinces, and image Missouri River Mississippi River 7003234100000000000 ♠ 2,341 mi 3,768 km 45 ° 55 ′ 39 '' N 111 ° 30 ′ 29 '' W ﻿ / ﻿ 45.92750 ° N 111.50806 ° W ﻿ / 45.92750 ; - 111.50806 ﻿ ( Missouri River ( source ) ) 38 ° 48 ′ 49 '' N 90 ° 07 ′ 11 '' W ﻿ / ﻿ 38.81361 ° N 90.11972 ° W ﻿ / 38.81361 ; - 90.11972 ﻿ ( Missouri River ( mouth ) ) 7005529353000000000 ♠ 529,353 mi 1,371,017 km 7004691000000000000 ♠ 69,100 ft / s 1,956 m / s Montana, North Dakota, South Dakota, Nebraska, Iowa, Kansas, Missouri Mississippi River Gulf of Mexico 7003220200000000000 ♠ 2,202 mi 3,544 km 47 ° 14 ′ 22 '' N 95 ° 12 ′ 29 '' W ﻿ / ﻿ 47.23944 ° N 95.20806 ° W ﻿ / 47.23944 ; - 95.20806 ﻿ ( Mississippi River ( source ) ) 29 ° 09 ′ 04 '' N 89 ° 15 ′ 12 '' W ﻿ / ﻿ 29.15111 ° N 89.25333 ° W ﻿ / 29.15111 ; - 89.25333 ﻿ ( Mississippi River ( mouth ) ) 7006126000000000000 ♠ 1,260,000 mi 3,270,000 km 7005650000000000000 ♠ 650,000 ft / s 18,400 m / s Minnesota, Wisconsin, Iowa, Illinois, Missouri, Kentucky, Tennessee, Arkansas, Mississippi, Louisiana Yukon River Bering Sea 7003197900000000000 ♠ 1,979 mi 3,185 km 59 ° 35 ′ 00 '' N 133 ° 47 ′ 00 '' W ﻿ / ﻿ 59.58333 ° N 133.78333 ° W ﻿ / 59.58333 ; - 133.78333 ﻿ ( Yukon River ( source ) ) 62 ° 35 ′ 55 '' N 164 ° 48 ′ 00 '' W ﻿ / ﻿ 62.59861 ° N 164.80000 ° W ﻿ / 62.59861 ; - 164.80000 ﻿ ( Yukon River ( mouth ) ) 7005324000000000000 ♠ 324,000 mi 839,200 km 7005224000000000000 ♠ 224,000 ft / s 6,340 m / s British Columbia, Yukon Territory, Alaska Rio Grande Gulf of Mexico 7003175900000000000 ♠ 1,759 mi 2,830 km 37 ° 47 ′ 52 '' N 107 ° 32 ′ 18 '' W ﻿ / ﻿ 37.79778 ° N 107.53833 ° W ﻿ / 37.79778 ; - 107.53833 ﻿ ( Rio Grande ( source ) ) 25 ° 57 ′ 22 '' N 97 ° 08 ′ 43 '' W ﻿ / ﻿ 25.95611 ° N 97.14528 ° W ﻿ / 25.95611 ; - 97.14528 ﻿ ( Rio Grande ( mouth ) ) 7005340000000000000 ♠ 340,000 mi 870,000 km 7003130000000000000 ♠ 1,300 ft / s 37 m / s Colorado, New Mexico, Texas, Chihuahua, Coahuila, Nuevo León, Tamaulipas 5 Colorado River Gulf of California 7003145000000000000 ♠ 1,450 mi 2,330 km 40 ° 28 ′ 20 '' N 105 ° 49 ′ 34 '' W ﻿ / ﻿ 40.47222 ° N 105.82611 ° W ﻿ / 40.47222 ; - 105.82611 ﻿ ( Colorado River ( source ) ) 31 ° 48 ′ 57 '' N 114 ° 48 ′ 22 '' W ﻿ / ﻿ 31.81583 ° N 114.80611 ° W ﻿ / 31.81583 ; - 114.80611 ﻿ ( Colorado River ( mouth ) ) 7005248000000000000 ♠ 248,000 mi 642,000 km 7003140000000000000 ♠ 1,400 ft / s 40 m / s Colorado, Utah, Arizona, Nevada, California, Sonora, Baja California 6 Arkansas River Mississippi River 7003144300000000000 ♠ 1,443 mi 2,322 km 39 ° 15 ′ 30 '' N 106 ° 20 ′ 38 '' W ﻿ / ﻿ 39.25833 ° N 106.34389 ° W ﻿ / 39.25833 ; - 106.34389 ﻿ ( Arkansas River ( source ) ) 33 ° 46 ′ 30 '' N 91 ° 04 ′ 15 '' W ﻿ / ﻿ 33.77500 ° N 91.07083 ° W ﻿ / 33.77500 ; - 91.07083 ﻿ ( Arkansas River ( mouth ) ) 7005160200000000000 ♠ 160,200 mi 414,910 km 7004355000000000000 ♠ 35,500 ft / s 1,004 m / s Colorado, Kansas, Oklahoma, Arkansas 7 Columbia River Pacific Ocean 7003124300000000000 ♠ 1,243 mi 2,000 km 50 ° 13 ′ 00 '' N 115 ° 51 ′ 00 '' W ﻿ / ﻿ 50.21667 ° N 115.85000 ° W ﻿ / 50.21667 ; - 115.85000 ﻿ ( Columbia River ( source ) ) 46 ° 14 ′ 39 '' N 124 ° 03 ′ 29 '' W ﻿ / ﻿ 46.24417 ° N 124.05806 ° W ﻿ / 46.24417 ; - 124.05806 ﻿ ( Columbia River ( mouth ) ) 7005279548000000000 ♠ 279,548 mi 724,024 km 7005273000000000000 ♠ 273,000 ft / s 7,730 m / s British Columbia, Washington, Oregon 8 Red River Atchafalaya and Mississippi rivers 7003112500000000000 ♠ 1,125 mi 1,811 km 34 ° 34 ′ 35 '' N 99 ° 57 ′ 54 '' W ﻿ / ﻿ 34.57639 ° N 99.96500 ° W ﻿ / 34.57639 ; - 99.96500 ﻿ ( Red River ( source ) ) 31 ° 01 ′ 10 '' N 91 ° 44 ′ 52 '' W ﻿ / ﻿ 31.01944 ° N 91.74778 ° W ﻿ / 31.01944 ; - 91.74778 ﻿ ( Red River ( mouth ) ) 7004655900000000000 ♠ 65,590 mi 169,890 km 7004301000000000000 ♠ 30,100 ft / s 852 m / s Oklahoma, Texas, Arkansas, Louisiana 9 Snake River Columbia River 7003104000000000000 ♠ 1,040 mi 1,674 km 44 ° 07 ′ 49 '' N 110 ° 13 ′ 10 '' W ﻿ / ﻿ 44.13028 ° N 110.21944 ° W ﻿ / 44.13028 ; - 110.21944 ﻿ ( Snake River ( source ) ) 46 ° 11 ′ 10 '' N 119 ° 01 ′ 43 '' W ﻿ / ﻿ 46.18611 ° N 119.02861 ° W ﻿ / 46.18611 ; - 119.02861 ﻿ ( Snake River ( mouth ) ) 7005108000000000000 ♠ 108,000 mi 281,000 km 7004553000000000000 ♠ 55,300 ft / s 1,565 m / s Wyoming, Idaho, Oregon, Washington 10 Ohio River Mississippi River 7002979000000000000 ♠ 979 mi 1,575 km 40 ° 26 ′ 34 '' N 80 ° 01 ′ 02 '' W ﻿ / ﻿ 40.44278 ° N 80.01722 ° W ﻿ / 40.44278 ; - 80.01722 ﻿ ( Ohio River ( source ) ) 36 ° 59 ′ 12 '' N 89 ° 07 ′ 50 '' W ﻿ / ﻿ 36.98667 ° N 89.13056 ° W ﻿ / 36.98667 ; - 89.13056 ﻿ ( Ohio River ( mouth ) ) 7005204000000000000 ♠ 204,000 mi 529,000 km 7005308400000000000 ♠ 308,400 ft / s 8,733 m / s Pennsylvania, Ohio, West Virginia, Indiana, Illinois, Kentucky 11 Colorado River of Texas Gulf of Mexico 7002970000000000000 ♠ 970 mi 1,560 km 32 ° 40 ′ 47 '' N 101 ° 43 ′ 51 '' W ﻿ / ﻿ 32.67972 ° N 101.73083 ° W ﻿ / 32.67972 ; - 101.73083 ﻿ ( Colorado River of Texas ( source ) ) ) 28 ° 35 ′ 41 '' N 95 ° 58 ′ 59 '' W ﻿ / ﻿ 28.59472 ° N 95.98306 ° W ﻿ / 28.59472 ; - 95.98306 ﻿ ( Colorado River of Texas ( mouth ) ) 7004399000000000000 ♠ 39,900 mi 103,341 km 7003260000000000000 ♠ 2,600 ft / s 75 m / s Texas 12 Tennessee River Ohio River 7002935000000000000 ♠ 935 mi 1,504 km 35 ° 57 ′ 33 '' N 83 ° 51 ′ 01 '' W ﻿ / ﻿ 35.95917 ° N 83.85028 ° W ﻿ / 35.95917 ; - 83.85028 ﻿ ( Tennessee River ( source ) ) 37 ° 04 ′ 02 '' N 88 ° 33 ′ 53 '' W ﻿ / ﻿ 37.06722 ° N 88.56472 ° W ﻿ / 37.06722 ; - 88.56472 ﻿ ( Tennessee River ( mouth ) ) 7004408800000000000 ♠ 40,880 mi 105,870 km 7004710000000000000 ♠ 71,000 ft / s 2,000 m / s Tennessee, Alabama, Kentucky 13 Canadian River Arkansas River 7002906000000000000 ♠ 906 mi 1,458 km 37 ° 01 ′ 11 '' N 105 ° 04 ′ 33 '' W ﻿ / ﻿ 37.01972 ° N 105.07583 ° W ﻿ / 37.01972 ; - 105.07583 ﻿ ( Canadian River ( source ) ) 35 ° 27 ′ 12 '' N 95 ° 01 ′ 58 '' W ﻿ / ﻿ 35.45333 ° N 95.03278 ° W ﻿ / 35.45333 ; - 95.03278 ﻿ ( Canadian River ( mouth ) ) 7004471300000000000 ♠ 47,130 mi 122,070 km 7003610000000000000 ♠ 6,100 ft / s 174 m / s Colorado, New Mexico, Texas, Oklahoma 14 Brazos River Gulf of Mexico 7002860000000000000 ♠ 860 mi 1,390 km 33 ° 16 ′ 07 '' N 100 ° 00 ′ 37 '' W ﻿ / ﻿ 33.26861 ° N 100.01028 ° W ﻿ / 33.26861 ; - 100.01028 ﻿ ( Brazos River ( source ) ) 28 ° 52 ′ 33 '' N 95 ° 22 ′ 42 '' W ﻿ / ﻿ 28.87583 ° N 95.37833 ° W ﻿ / 28.87583 ; - 95.37833 ﻿ ( Brazos River ( mouth ) ) 7004446200000000000 ♠ 44,620 mi 115,566 km 7003880000000000000 ♠ 8,800 ft / s 249 m / s Texas 15 Green River Colorado River 7002760000000000000 ♠ 760 mi 1,230 km 43 ° 09 ′ 13 '' N 109 ° 40 ′ 18 '' W ﻿ / ﻿ 43.15361 ° N 109.67167 ° W ﻿ / 43.15361 ; - 109.67167 ﻿ ( Green River ( source ) ) 38 ° 11 ′ 21 '' N 109 ° 53 ′ 07 '' W ﻿ / ﻿ 38.18917 ° N 109.88528 ° W ﻿ / 38.18917 ; - 109.88528 ﻿ ( Green River ( mouth ) ) 7004449000000000000 ♠ 44,900 mi 116,200 km 7003610000000000000 ♠ 6,100 ft / s 172 m / s Wyoming, Colorado, Utah 16 Pecos River Rio Grande 7002730000000000000 ♠ 730 mi 1,175 km 35 ° 58 ′ 34 '' N 105 ° 33 ′ 29 '' W ﻿ / ﻿ 35.97611 ° N 105.55806 ° W ﻿ / 35.97611 ; - 105.55806 ﻿ ( Pecos River ( source ) ) 29 ° 41 ′ 59 '' N 101 ° 22 ′ 17 '' W ﻿ / ﻿ 29.69972 ° N 101.37139 ° W ﻿ / 29.69972 ; - 101.37139 ﻿ ( Pecos River ( mouth ) ) 7004440000000000000 ♠ 44,000 mi 113,960 km 7001710000000000000 ♠ 71 ft / s 2 m / s New Mexico, Texas 17 White River ( Arkansas ) Mississippi River 7002720000000000000 ♠ 720 mi 1,159 km 35 ° 50 ′ 20 '' N 93 ° 36 ′ 16 '' W ﻿ / ﻿ 35.83889 ° N 93.60444 ° W ﻿ / 35.83889 ; - 93.60444 ﻿ ( White River ( source ) ) 33 ° 57 ′ 05 '' N 91 ° 04 ′ 53 '' W ﻿ / ﻿ 33.95139 ° N 91.08139 ° W ﻿ / 33.95139 ; - 91.08139 ﻿ ( White River ( mouth ) ) 7004278720000000000 ♠ 27,872 mi 72,189 km 7004346000000000000 ♠ 34,600 ft / s 979 m / s Arkansas, Missouri 18 James River Missouri River 7002710000000000000 ♠ 710 mi 1,140 km 47 ° 28 ′ 53 '' N 99 ° 51 ′ 32 '' W ﻿ / ﻿ 47.48139 ° N 99.85889 ° W ﻿ / 47.48139 ; - 99.85889 ﻿ ( James River ( source ) ) 42 ° 52 ′ 17 '' N 97 ° 17 ′ 26 '' W ﻿ / ﻿ 42.87139 ° N 97.29056 ° W ﻿ / 42.87139 ; - 97.29056 ﻿ ( James River ( mouth ) ) 7004209420000000000 ♠ 20,942 mi 54,240 km 7002854000000000000 ♠ 854 ft / s 24.2 m / s North Dakota, South Dakota 19 Kuskokwim River Bering Sea 7002702000000000000 ♠ 702 mi 1,130 km 63 ° 05 ′ 16 '' N 154 ° 38 ′ 33 '' W ﻿ / ﻿ 63.08778 ° N 154.64250 ° W ﻿ / 63.08778 ; - 154.64250 ﻿ ( Kuskokwim River ( source ) ) 60 ° 04 ′ 59 '' N 162 ° 20 ′ 02 '' W ﻿ / ﻿ 60.08306 ° N 162.33389 ° W ﻿ / 60.08306 ; - 162.33389 ﻿ ( Kuskokwim River ( mouth ) ) 7004480000000000000 ♠ 48,000 mi 124,319 km 7004670000000000000 ♠ 67,000 ft s 1,900 m / s Alaska 20 Cimarron River Arkansas River 7002698000000000000 ♠ 698 mi 1,123 km 36 ° 54 ′ 24 '' N 102 ° 59 ′ 12 '' W ﻿ / ﻿ 36.90667 ° N 102.98667 ° W ﻿ / 36.90667 ; - 102.98667 ﻿ ( `` Cimarron River ( source ) ) 36 ° 10 ′ 14 '' N 96 ° 16 ′ 19 '' W ﻿ / ﻿ 36.17056 ° N 96.27194 ° W ﻿ / 36.17056 ; - 96.27194 ﻿ ( Cimarron River ( mouth ) ) 7004195100000000000 ♠ 19,510 mi 50,540 km 7003150000000000000 ♠ 1,500 ft / s 42 m / s Oklahoma, Colorado, Kansas 21 Cumberland River Ohio River 7002696000000000000 ♠ 696 mi 1,120 km 36 ° 50 ′ 42 '' N 83 ° 19 ′ 26 '' W ﻿ / ﻿ 36.84500 ° N 83.32389 ° W ﻿ / 36.84500 ; - 83.32389 ﻿ ( Cumberland River ( source ) ) 37 ° 08 ′ 36 '' N 88 ° 24 ′ 27 '' W ﻿ / ﻿ 37.14333 ° N 88.40750 ° W ﻿ / 37.14333 ; - 88.40750 ﻿ ( Cumberland River ( mouth ) ) 7004179300000000000 ♠ 17,930 mi 46,430 km 7004304000000000000 ♠ 30,400 ft / s 862 m / s Kentucky, Tennessee 22 Yellowstone River Missouri River 7002678000000000000 ♠ 678 mi 1,091 km 43 ° 59 ′ 18 '' N 109 ° 55 ′ 45 '' W ﻿ / ﻿ 43.98833 ° N 109.92917 ° W ﻿ / 43.98833 ; - 109.92917 ﻿ ( Yellowstone River ( source ) ) 47 ° 58 ′ 42 '' N 103 ° 58 ′ 56 '' W ﻿ / ﻿ 47.97833 ° N 103.98222 ° W ﻿ / 47.97833 ; - 103.98222 ﻿ ( Yellowstone River ( mouth ) ) 7004704000000000000 ♠ 70,400 mi 182,336 km 7004128000000000000 ♠ 12,800 ft / s 362 m / s Wyoming, Montana, North Dakota 23 North Platte River Platte River 7002665000000000000 ♠ 665 mi 1,070 km 40 ° 38 ′ 23 '' N 106 ° 24 ′ 19 '' W ﻿ / ﻿ 40.63972 ° N 106.40528 ° W ﻿ / 40.63972 ; - 106.40528 ﻿ ( North Platte River ( source ) ) 41 ° 06 ′ 50 '' N 100 ° 40 ′ 33 '' W ﻿ / ﻿ 41.11389 ° N 100.67583 ° W ﻿ / 41.11389 ; - 100.67583 ﻿ ( North Platte River ( mouth ) ) 7004348850000000000 ♠ 34,885 mi 90,352 km 7002770000000000000 ♠ 770 ft / s 21.9 m / s Colorado, Wyoming, Nebraska 24 Milk River Missouri River 7002625000000000000 ♠ 625 mi 1,005 km 48 ° 51 ′ 20 '' N 113 ° 01 ′ 10 '' W ﻿ / ﻿ 48.85556 ° N 113.01944 ° W ﻿ / 48.85556 ; - 113.01944 ﻿ ( Milk River ( source ) ) 48 ° 03 ′ 26 '' N 106 ° 19 ′ 07 '' W ﻿ / ﻿ 48.05722 ° N 106.31861 ° W ﻿ / 48.05722 ; - 106.31861 ﻿ ( Milk River ( mouth ) ) 7004223320000000000 ♠ 22,332 mi 57,839 km 7002670000000000000 ♠ 670 ft / s 18.9 m / s Alberta, Montana 25 Ouachita River Black River 7002605000000000000 ♠ 605 mi 974 km 31 ° 41 ′ 56 '' N 94 ° 19 ′ 57 '' W ﻿ / ﻿ 31.69889 ° N 94.33250 ° W ﻿ / 31.69889 ; - 94.33250 ﻿ ( Ouachita River ( source ) ) 31 ° 37 ′ 53 '' N 91 ° 48 ′ 25 '' W ﻿ / ﻿ 31.63139 ° N 91.80694 ° W ﻿ / 31.63139 ; - 91.80694 ﻿ ( Ouachita River ( mouth ) ) 7004248860000000000 ♠ 24,886 mi 64,454 km 7004298000000000000 ♠ 29,800 ft / s 843 m / s Arkansas, Louisiana 26 Saint Lawrence River Gulf of Saint Lawrence 7002600000000000000 ♠ 600 mi 965 km 44 ° 05 ′ 55 '' N 76 ° 23 ′ 28 '' W ﻿ / ﻿ 44.09861 ° N 76.39111 ° W ﻿ / 44.09861 ; - 76.39111 ﻿ ( St. Lawrence River ( source ) ) 49 ° 40 ′ 00 '' N 64 ° 30 ′ 00 '' W ﻿ / ﻿ 49.66667 ° N 64.50000 ° W ﻿ / 49.66667 ; - 64.50000 ﻿ ( Saint Lawrence River ( mouth ) ) 7005620000000000000 ♠ 620,000 mi 1,600,000 km 7005440000000000000 ♠ 440,000 ft / s 12,600 m / s New York, Ontario, Quebec 27 Gila River Colorado River 7002600000000000000 ♠ 600 mi 960 km 33 ° 10 ′ 47 '' N 108 ° 12 ′ 22 '' W ﻿ / ﻿ 33.17972 ° N 108.20611 ° W ﻿ / 33.17972 ; - 108.20611 ﻿ ( Gila River ( source ) ) 32 ° 43 ′ 11 '' N 114 ° 33 ′ 19 '' W ﻿ / ﻿ 32.71972 ° N 114.55528 ° W ﻿ / 32.71972 ; - 114.55528 ﻿ ( Gila River ( mouth ) ) 7004578500000000000 ♠ 57,850 mi 149,832 km 7002210000000000000 ♠ 210 ft / s 6 m / s New Mexico, Arizona 28 Sheyenne River Red River of the North 7002591000000000000 ♠ 591 mi 951 km 47 ° 41 ′ 46 '' N 100 ° 29 ′ 52 '' W ﻿ / ﻿ 47.69611 ° N 100.49778 ° W ﻿ / 47.69611 ; - 100.49778 ﻿ ( Sheyenne River ( source ) ) 47 ° 01 ′ 25 '' N 96 ° 49 ′ 31 '' W ﻿ / ﻿ 47.02361 ° N 96.82528 ° W ﻿ / 47.02361 ; - 96.82528 ﻿ ( Sheyenne River ( mouth ) ) 7003880000000000000 ♠ 8,800 mi 23,000 km 7002288000000000000 ♠ 288 ft / s 8.2 m / s North Dakota 29 Tanana River Yukon River 7002584000000000000 ♠ 584 mi 940 km 63 ° 02 ′ 57 '' N 141 ° 51 ′ 52 '' W ﻿ / ﻿ 63.04917 ° N 141.86444 ° W ﻿ / 63.04917 ; - 141.86444 ﻿ ( Tanana River ( source ) ) 65 ° 09 ′ 38 '' N 151 ° 57 ′ 37 '' W ﻿ / ﻿ 65.16056 ° N 151.96028 ° W ﻿ / 65.16056 ; - 151.96028 ﻿ ( Tanana River ( mouth ) ) 7004440000000000000 ♠ 44,000 mi 114,000 km 7004418000000000000 ♠ 41,800 ft / s 1,185 m / s Alaska 30 Smoky Hill River Kansas River 7002576000000000000 ♠ 576 mi 927 km 38 ° 57 ′ 01 '' N 102 ° 34 ′ 49 '' W ﻿ / ﻿ 38.95028 ° N 102.58028 ° W ﻿ / 38.95028 ; - 102.58028 ﻿ ( Smoky Hill River ( source ) ) 39 ° 03 ′ 36 '' N 96 ° 48 ′ 04 '' W ﻿ / ﻿ 39.06000 ° N 96.80111 ° W ﻿ / 39.06000 ; - 96.80111 ﻿ ( Smoky Hill ( mouth ) ) 7004192600000000000 ♠ 19,260 mi 49,900 km 7003154200000000000 ♠ 1,542 ft / s 43.7 m / s Colorado, Kansas 31 Niobrara River Missouri River 7002568000000000000 ♠ 568 mi 914 km 42 ° 49 ′ 15 '' N 104 ° 38 ′ 50 '' W ﻿ / ﻿ 42.82083 ° N 104.64722 ° W ﻿ / 42.82083 ; - 104.64722 ﻿ ( Niobrara River ( source ) ) 42 ° 45 ′ 58 '' N 98 ° 02 ′ 50 '' W ﻿ / ﻿ 42.76611 ° N 98.04722 ° W ﻿ / 42.76611 ; - 98.04722 ﻿ ( Niobrara River ( mouth ) ) 7004126000000000000 ♠ 12,600 mi 32,600 km 7003170000000000000 ♠ 1,700 ft / s 49 m / s Wyoming, Nebraska 32 Little Missouri River Missouri River 7002560000000000000 ♠ 560 mi 900 km 44 ° 32 ′ 25 '' N 104 ° 59 ′ 57 '' W ﻿ / ﻿ 44.54028 ° N 104.99917 ° W ﻿ / 44.54028 ; - 104.99917 ﻿ ( `` Little Missouri River ( source ) ) 47 ° 36 ′ 38 '' N 102 ° 52 ′ 24 '' W ﻿ / ﻿ 47.61056 ° N 102.87333 ° W ﻿ / 47.61056 ; - 102.87333 ﻿ ( Little Missouri River ( mouth ) ) 7003831000000000000 ♠ 8,310 mi 21,500 km 7002450000000000000 ♠ 450 ft / s 13 m / s Wyoming, Montana, South Dakota, North Dakota 33 Sabine River Gulf of Mexico 7002553000000000000 ♠ 553 mi 890 km 32 ° 48 ′ 29 '' N 95 ° 55 ′ 14 '' W ﻿ / ﻿ 32.80806 ° N 95.92056 ° W ﻿ / 32.80806 ; - 95.92056 ﻿ ( Sabine River ( source ) ) 29 ° 59 ′ 08 '' N 93 ° 47 ′ 26 '' W ﻿ / ﻿ 29.98556 ° N 93.79056 ° W ﻿ / 29.98556 ; - 93.79056 ﻿ ( Sabine River ( mouth ) ) 7003975600000000000 ♠ 9,756 mi 25,268 km 7003840000000000000 ♠ 8,400 ft / s 238 m / s Texas, Louisiana 34 Red River of the North Lake Winnipeg 7002550000000000000 ♠ 550 mi 890 km 46 ° 15 ′ 52 '' N 96 ° 35 ′ 55 '' W ﻿ / ﻿ 46.26444 ° N 96.59861 ° W ﻿ / 46.26444 ; - 96.59861 ﻿ ( Red River of the North ( source ) ) 50 ° 23 ′ 47 '' N 96 ° 48 ′ 39 '' W ﻿ / ﻿ 50.39639 ° N 96.81083 ° W ﻿ / 50.39639 ; - 96.81083 ﻿ ( Red River ( mouth ) ) 7005111000000000000 ♠ 111,000 mi 287,500 km 7003830000000000000 ♠ 8,300 ft / s 236 m / s North Dakota, Minnesota, Manitoba 35 Des Moines River Mississippi River 7002525000000000000 ♠ 525 mi 845 km 44 ° 05 ′ 02 '' N 95 ° 41 ′ 17 '' W ﻿ / ﻿ 44.08389 ° N 95.68806 ° W ﻿ / 44.08389 ; - 95.68806 ﻿ ( Des Moines ( source ) ) 41 ° 22 ′ 52 '' N 91 ° 25 ′ 21 '' W ﻿ / ﻿ 41.38111 ° N 91.42250 ° W ﻿ / 41.38111 ; - 91.42250 ﻿ ( Des Moines River ( mouth ) ) 7004120180000000000 ♠ 12,018 mi 31,127 km 7003640000000000000 ♠ 6,400 ft / s 182 m / s Minnesota, Missouri, Iowa 36 White River ( Missouri River ) Missouri River 7002506000000000000 ♠ 506 mi 815 km 42 ° 41 ′ 10 '' N 103 ° 50 ′ 14 '' W ﻿ / ﻿ 42.68611 ° N 103.83722 ° W ﻿ / 42.68611 ; - 103.83722 ﻿ ( White River ( source ) ) 43 ° 42 ′ 50 '' N 99 ° 28 ′ 01 '' W ﻿ / ﻿ 43.71389 ° N 99.46694 ° W ﻿ / 43.71389 ; - 99.46694 ﻿ ( White River ( mouth ) ) 7004102000000000000 ♠ 10,200 mi 26,418 km 7002570000000000000 ♠ 570 ft / s 16 m / s Nebraska, South Dakota 37 Trinity River Galveston Bay 7002506000000000000 ♠ 506 mi 815 km 32 ° 47 ′ 54 '' N 96 ° 53 ′ 52 '' W ﻿ / ﻿ 32.79833 ° N 96.89778 ° W ﻿ / 32.79833 ; - 96.89778 ﻿ ( Trinity River ( source ) ) 29 ° 44 ′ 35 '' N 94 ° 42 ′ 12 '' W ﻿ / ﻿ 29.74306 ° N 94.70333 ° W ﻿ / 29.74306 ; - 94.70333 ﻿ ( Trinity River ( mouth ) ) 7004179700000000000 ♠ 17,970 mi 46,540 km 7003780000000000000 ♠ 7,800 ft / s 222 m / s Texas 38 Wabash River Ohio River 7002503000000000000 ♠ 503 mi 810 km 40 ° 21 ′ 07 '' N 84 ° 45 ′ 57 '' W ﻿ / ﻿ 40.35194 ° N 84.76583 ° W ﻿ / 40.35194 ; - 84.76583 ﻿ ( Wabash River ( source ) ) 37 ° 47 ′ 53 '' N 88 ° 01 ′ 38 '' W ﻿ / ﻿ 37.79806 ° N 88.02722 ° W ﻿ / 37.79806 ; - 88.02722 ﻿ ( Wabash River ( mouth ) ) 7004329500000000000 ♠ 32,950 mi 85,340 km < / ref > 7003100100000000000 ♠ 1,001 ft / s 28 m / s Ohio, Indiana, Illinois Map Map of North America showing all rivers on this list See also List of longest rivers in the United States by state Notes Jump up ^ Dams, diversions for agriculture, and other human alterations to rivers have greatly affected the discharge of some rivers over time. For example, the virgin discharge of the Colorado River is estimated to have been 20,000 ft / s ( 566 m / s ) compared to 1,400 ft / s ( ~ 40 m / s ) in 2005. Jump up ^ Of the total, 10,700 mi ( 28,000 km ), about two percent of the basin, is in Canada. Jump up ^ Kammerer : 76,200 ft / s ( 2,160 m / s ). Jump up ^ Kammerer : 2,340 mi ( 3,770 km ). The Atlas of Canada : 2,348 mi ( 3,779 km ). Jump up ^ Of the total, 10,700 mi ( 27,800 km ), about two percent of the basin, is in Canada. Jump up ^ Of this total, 714 mi ( 1,149 km ) are in Canada. This amounts to about 36 percent of the main - stem length. Jump up ^ The Atlas of Canada also lists the total basin size at 324,000 mi ( 839,200 km ), split between 125,000 mi ( 323,800 km ), about 39 percent, in Canada and 199,000 mi ( 515,400 km ), about 61 percent, in the United States. Jump up ^ Kammerer : 1,900 mi ( 3,100 km ). University of Texas ( UT ) : 1,799 mi ( 2,895 km ). The river forms the U.S. -- Mexico border for 1.251 mi ( 2,013 km ) ( about 70 percent of its main - stem length ) from El Paso to the Gulf of Mexico. Jump up ^ Rivers of North America says that of this total only about 170,000 mi ( 450,000 km ) of the basin contribute water to the river. The University of Texas ( UT ) says, `` The river collects rain, snowmelt and spring water from an area ( of ) about 215,338 mi ( 557,722 km ) including closed basins. '' It says that 87,020 mi ( 225,380 km ) of the basin ( about 48 percent ), not counting closed basins, are in Mexico, while 93,821 mi ( 242,994 km ) ( about 52 percent ) are in the United States. Kammerer cites a total basin size of 336,000 mi ( 870,000 km ). Jump up ^ According to the Utah Division of Water Resources, 75 mi ( 121 km ) of the river are in Mexico. This amounts to about 5 percent of the main - stem length. Of this, 17 mi ( 27 km ) form the border between Mexico and the United States. Jump up ^ The United Nations Environment Programme cites a total basin size of 246,000 mi ( 637,000 km ), split between 2,000 mi ( 5,200 km ) ( about 1 percent ) in Mexico and 244,000 mi ( 632,000 km ) ( about 99 percent ) in the United States. Jump up ^ Derived by subtracting the length of the East Fork Arkansas River of roughly 16 mi ( 26 km ) from Kammerer 's total of 1,459 mi ( 2,348 km ). Jump up ^ About 498 mi ( 801 km ) are in Canada. This amounts to about 40 percent of the main - stem length. Jump up ^ The Atlas of Canada lists the total watershed at 259,200 mi ( 671,300 km ), split between 39,700 mi ( 102,800 km ) ( about 15 percent ) in Canada and 219,500 mi ( 568,500 km ) ( about 85 percent ) in the United States. Kammerer 's figure for the total watershed is 265,000 mi ( 690,000 km ). Jump up ^ This is the combined length, 1,360 mi ( 2,190 km ), of the main stem, Prairie Dog Town Fork Red River, and Tierra Blanca Creek minus the lengths of the latter two, 160 mi ( 260 km ) and 75 mi ( 121 km ). Kammerer gives the length as 1,290 mi ( 2,080 km ). Jump up ^ Kammerer : 93,200 mi. Jump up ^ Kammerer : 56,000 ft / s ( 1,600 m ) Jump up ^ Also known as the Dakota River or Jim River and not to be confused with the James River of Virginia. Jump up ^ This is the average discharge for the years 1982 -- 94, derived by adding the discharge for each of these years and dividing by 13. Jump up ^ According to The Canadian Encyclopedia, a 110 - mi ( 170 km ) stretch of the river flows through Canada. This amounts to about 18 percent of the main - stem length. Jump up ^ The Atlas of Canada : 23,600 mi ( 61,200 km ) split between 8,300 mi ( 21,600 km ) ( about 35 percent ) in Canada and 15,300 mi ( 39,600 km ) ( about 65 percent ) in the United States. Jump up ^ According to the U.S. Army Corps of Engineers, a 115 - mi ( 185 km ) stretch of the river forms part of the U.S. -- Canada border. This amounts to about 19 percent of the main - stem length. Jump up ^ Kammerer : 396,000 mi ( 1,030,000 km ). The Atlas of Canada : 519,000 mi ( 1,344,200 km ), of which 324,000 mi ( 839,200 km ) ( about 62 percent ) is in Canada and 195,000 mi ( 505,000 km ) ( about 38 percent ) is in the United States. Jump up ^ Kammerer : 348,000 ft / s ( 9,900 m / s ). Jump up ^ Of this total, 232 mi ( 600 km ) ( about 0.4 percent ) are in the Mexican state of Sonora, and the rest is in the United States. Jump up ^ Rivers of North America describes the discharge as less than 210 ft / s ( 6 m / s. Jump up ^ This is the size of the basin upstream of a stream gauge near Kindred and at river mile 67.9 ( river kilometer 109.3 ). Jump up ^ This is the average flow measured by a stream gauge near Kindred and at river mile 67.9 ( river kilometer 109.3 ). Jump up ^ The main - stem length is calculated by subtracting the length of the Nabesna River from Kammerer 's total of 659 mi ( 1,061 km ). The Nabesna River is roughly 75 mi ( 121 km ) long, calculated by adding the 60 mi ( 97 km ) from the Nabesna mouth to Camp Creek to the distance, 15 mi ( 24 km ), from Camp Creek to Nabesna Glacier, Kammerer 's most remote source for the Tanana. Jump up ^ Reflects only that part of the basin above a stream gauge at river mile 43.3 ( river kilometer 69.7 ) near Enterprise. Jump up ^ Measured by a stream gauge at river mile 43.3 ( river kilometer 69.7 ) near Enterprise. Jump up ^ This is only a close approximation of the entire basin. It does not include a small fraction of the basin below the river gauge, located about 25 mi ( 40 km ) upstream of the river mouth. Jump up ^ This is the average discharge for the years 1990 -- 2010, derived by adding the discharge for each of these years and dividing by 21. Jump up ^ According to the Minnesota Department of Natural Resources, 394 mi ( 634 km ) are in the United States. This amounts to about 72 percent of the main - stem length. Jump up ^ Of the total basin, 53,500 mi ( 138,600 km ) ( about 48 percent ) are in Canada and 57,500 mi ( 148,900 km ) ( about 52 percent ) are in the United States. References Jump up ^ Benke & Cushing 2005, p. 1137. Jump up ^ Benke & Cushing 2005, p. 236. Jump up ^ Benke & Cushing 2005, p. 615. Jump up ^ Benke & Cushing 2005, p. 50. ^ Jump up to : The Road Atlas. Chicago, Illinois : Rand McNally & Company. 2008. ISBN 978 - 0 - 528 - 93961 - 7. ^ Jump up to : `` Rivers ''. The Atlas of Canada. Natural Resources Canada. Archived from the original on April 4, 2007. Retrieved February 11, 2011. ^ Jump up to : `` Missouri River Basin Basic Geography and Natural Features ''. United States Geological Survey. Archived from the original on April 7, 2014. Retrieved February 20, 2011. ^ Jump up to : McCord, Marc W. `` Gila River ''. Wind Spirit Community. Archived from the original on March 3, 2017. Retrieved February 20, 2011. Jump up ^ Patrick 1995, p. 24. ^ Jump up to : Benke & Cushing 2005, p. 527. ^ Jump up to : The mouth coordinates and source coordinates are from the Geographic Names Information System ( United States Geological Survey ) or the Canadian Geographical Names Data Base except for the coordinates of the mouth of the Colorado River, derived by geolocating with Google Earth. ^ Jump up to : From Rivers of North America ( ed. Benke and Cushing ) unless otherwise noted. Jump up ^ Benke & Cushing 2005, p. 432. Jump up ^ `` Missouri River ''. Geographic Names Information System ( GNIS ). United States Geological Survey. October 24, 1980. Retrieved February 4, 2011. Jump up ^ Benke & Cushing 2005, p. 469. ^ Jump up to : Kammerer, J.C. ( September 1, 2005 ). `` Largest Rivers in the United States ''. United States Geological Survey. Retrieved January 22, 2011. Jump up ^ Benke & Cushing 2005, pp. 237, 331. Jump up ^ `` Mississippi River ''. Geographic Names Information System ( GNIS ). United States Geological Survey. June 4, 1980. Retrieved February 4, 2011. Jump up ^ Benke & Cushing 2005, p. 272. Jump up ^ `` Atlin Lake ( B.C. ) ''. Natural Resources Canada. Archived from the original on July 6, 2011. Retrieved February 4, 2011. Jump up ^ `` Yukon River ''. Geographic Names Information System ( GNIS ). United States Geological Survey. March 31, 1981. Retrieved February 4, 2011. Jump up ^ Benke & Cushing 2005, p. 796. Jump up ^ Benke & Cushing 2005, p. 186. ^ Jump up to : Patino, Carlos ; McKinney, Daene C. ; Maidment, David R. `` Water Management Information System for the Rio Grande / Bravo Basin ''. University of Texas Center for Research in Water Resources. Archived from the original on April 1, 2015. Retrieved February 19, 2011. Jump up ^ `` Rio Grande ''. Geographic Names Information System ( GNIS ). United States Geological Survey. March 30, 1979. Retrieved February 4, 2011. ^ Jump up to : Benke & Cushing 2005, p. 220. Jump up ^ Anderson, D. Larry ( May 2002 ). `` Utah 's Perspective : The Colorado River '' ( PDF ). p. 5. Archived from the original ( PDF ) on April 9, 2014. Retrieved February 19, 2011. ^ Jump up to : Arias, E. ; Albar, M. ; Parra, I ; Reza, M. `` Regional Definition '' ( PDF ). United Nations Environment Programme. pp. 20 -- 21. Archived ( PDF ) from the original on May 31, 2017. Retrieved May 30, 2017. Jump up ^ `` Colorado River ''. Geographic Names Information System ( GNIS ). United States Geological Survey. February 8, 1980. Retrieved February 4, 2011. Jump up ^ Derived via Google Earth Jump up ^ Colorado Atlas and Gazetteer ( Map ). DeLorme. 1998. § 47 -- 48. ISBN 978 - 0 - 89933 - 265 - 9. Jump up ^ `` Arkansas River ''. Geographic Names Information System ( GNIS ). United States Geological Survey. November 30, 1979. Retrieved February 4, 2011. Jump up ^ Benke & Cushing 2005, p. 315. Jump up ^ `` Columbia Lake ''. Natural Resources Canada. Archived from the original on July 6, 2011. Retrieved January 31, 2011. Jump up ^ `` Columbia River ''. Geographic Names Information System. United States Geological Survey. November 28, 1980. Retrieved August 5, 2010. Jump up ^ Benke & Cushing 2005, p. 646. Jump up ^ Kleiner, Diana J. `` Handbook of Texas : Red River ''. Texas State Historical Association. Archived from the original on December 23, 2015. Retrieved February 18, 2011. Jump up ^ `` Handbook of Texas : Prairie Dog Town Fork of the Red River ''. Texas State Historical Association. Archived from the original on March 14, 2016. Retrieved February 18, 2011. Jump up ^ `` Handbook of Texas : Tierra Blanca Creek ''. Texas State Historical Association. Retrieved February 18, 2011. Jump up ^ `` Red River ''. Geographic Names Information System ( GNIS ). United States Geological Survey. June 4, 1980. Retrieved February 5, 2011. Jump up ^ Benke & Cushing 2005, p. 317. Jump up ^ `` Snake River ''. Geographic Names Information System ( GNIS ). United States Geological Survey. September 10, 1979. Retrieved August 6, 2010. Jump up ^ Benke & Cushing 2005, p. 643. Jump up ^ Benke & Cushing 2005, p. 379. Jump up ^ `` Ohio River ''. Geographic Names Information System ( GNIS ). United States Geological Survey. October 24, 1980. Retrieved February 5, 2011. Jump up ^ Benke & Cushing 2005, p. 413. Jump up ^ Benke & Cushing 2005, p. 198. Jump up ^ `` Colorado River ''. Geographic Names Information System ( GNIS ). United States Geological Survey. November 30, 1979. Retrieved February 5, 2011. Jump up ^ Benke & Cushing 2005, p. 222. Jump up ^ Benke & Cushing 2005, p. 384. Jump up ^ `` Tennessee River ''. Geographic Names Information System ( GNIS ). United States Geological Survey. September 20, 1979. Retrieved February 5, 2011. Jump up ^ Benke & Cushing 2005, p. 414. Jump up ^ `` Canadian River ''. Geographic Names Information System ( GNIS ). United States Geological Survey. December 18, 1979. Retrieved February 5, 2011. Jump up ^ Benke & Cushing 2005, p. 316. Jump up ^ Benke & Cushing 2005, p. 203. Jump up ^ `` Brazos River ''. Geographic Names Information System ( GNIS ). United States Geological Survey. November 30, 1979. Retrieved February 5, 2011. Jump up ^ Benke & Cushing 2005, p. 223. Jump up ^ Benke & Cushing 2005, p. 497. Jump up ^ `` Green River ''. Geographic Names Information System. United States Geological Survey ( USGS ). December 31, 1979. Retrieved February 5, 2011. Jump up ^ Benke & Cushing 2005, p. 528. Jump up ^ Benke & Cushing 2005, p. 213. Jump up ^ `` Pecos River ''. Geographic Names Information System. United States Geological Survey ( USGS ). November 30, 1979. Retrieved February 5, 2011. Jump up ^ Benke & Cushing 2005, p. 225. Jump up ^ Benke & Cushing 2005, p. 246. Jump up ^ `` White River ''. Geographic Names Information System. United States Geological Survey ( USGS ). April 30, 1980. Retrieved February 5, 2011. Jump up ^ Benke & Cushing 2005, p. 273. Jump up ^ `` River Facts ''. American Rivers. Archived from the original on March 10, 2012. Retrieved February 22, 2011. Jump up ^ `` James River ''. Geographic Names Information System. United States Geological Survey ( USGS ). February 13, 1980. Retrieved February 22, 2011. ^ Jump up to : `` USGS 06478513 James River near Yankton, SD ''. United States Geological Survey. November 2010. Retrieved February 23, 2011. Jump up ^ Benke & Cushing 2005, p. 741. Jump up ^ `` Kuskokwim River ''. Geographic Names Information System. United States Geological Survey ( USGS ). January 1, 2000. Retrieved February 5, 2011. Jump up ^ Benke & Cushing 2005, p. 764. Jump up ^ `` Cimarron River ''. Oklahoma Historical Society. Archived from the original on December 27, 2014. Retrieved February 5, 2011. Jump up ^ `` Cimarron River ''. Geographic Names Information System. United States Geological Survey ( USGS ). December 18, 1979. Retrieved February 5, 2011. Jump up ^ Benke & Cushing 2005, p. 319. Jump up ^ Benke & Cushing 2005, p. 390. Jump up ^ `` Cumberland River ''. Geographic Names Information System. United States Geological Survey ( USGS ). September 20, 1979. Retrieved February 5, 2011. Jump up ^ Benke & Cushing 2005, p. 415. Jump up ^ Benke & Cushing 2005, p. 440. Jump up ^ `` Yellowstone River ''. Geographic Names Information System. United States Geological Survey ( USGS ). February 13, 1980. Retrieved January 20, 2011. Jump up ^ Benke & Cushing 2005, p. 470. ^ Jump up to : Benke & Cushing 2005, p. 451. Jump up ^ `` North Platte River ''. Geographic Names Information System. United States Geological Survey ( USGS ). October 13, 1978. Retrieved February 6, 2011. Jump up ^ Marsh, James H. ( March 4, 2015 ). `` Milk River ''. Historica Canada. Retrieved May 19, 2017. Jump up ^ `` Milk River ''. Geographic Names Information System. United States Geological Survey ( USGS ). April 4, 1980. Retrieved February 5, 2011. Jump up ^ Benke & Cushing 2005, p. 475. Jump up ^ Benke and Cushing, p. 265 Jump up ^ `` Ouachita River ''. Geographic Names Information System. United States Geological Survey ( USGS ). January 1, 2000. Retrieved February 6, 2011. Jump up ^ Benke & Cushing 2005, p. 279. Jump up ^ Benke & Cushing 2005, p. 987. Jump up ^ `` St. Lawrence River ( International Section ) ''. U.S. Army Corps of Engineers, Detroit District. Retrieved February 19, 2011. Jump up ^ `` St. Lawrence River ''. Geographic Names Information System. United States Geological Survey ( USGS ). January 1, 2000. Retrieved February 3, 2011. Jump up ^ `` Saint Lawrence River ''. Natural Resources Canada. Archived from the original on July 6, 2011. Retrieved February 3, 2011. Jump up ^ Benke & Cushing 2005, p. 983. Jump up ^ Benke & Cushing 2005, p. 511. Jump up ^ `` Gila River ''. Geographic Names Information System. United States Geological Survey ( USGS ). February 8, 1980. Retrieved February 6, 2011. Jump up ^ Benke & Cushing 2005, p. 531. ^ Jump up to : `` National Hydrography Dataset ''. United States Geological Survey. Retrieved June 9, 2011. Jump up ^ `` Sheyenne River ''. Geographic Names Information System. United States Geological Survey ( USGS ). February 13, 1980. Retrieved June 9, 2011. ^ Jump up to : `` Water - Data Report 2010 : 05059000 Sheyenne River near Kindred, ND '' ( PDF ). United States Geological Survey. Retrieved June 9, 2011. Jump up ^ Irwin, Thomas ( October 3, 2005 ). `` Recordable Disclaimer of Interest Application for the Nabesna River '' ( PDF ). U.S. Bureau of Land Management. Archived from the original ( PDF ) on October 19, 2012. Retrieved February 19, 2011. Jump up ^ Alaska Atlas and Gazetteer ( Map ) ( 7th ed. ). DeLorme. 2010. p. 98. ISBN 0 - 89933 - 289 - 7. Jump up ^ `` Tanana River ''. Geographic Names Information System. United States Geological Survey ( USGS ). January 1, 2000. Retrieved February 2, 2011. Jump up ^ Benke & Cushing 2005, p. 797. Jump up ^ `` Smoky Hill River ''. Geographic Names Information System. United States Geological Survey ( USGS ). October 13, 1978. Retrieved June 14, 2011. ^ Jump up to : `` Water - Data Report 2010 : 06877600 Smoky Hill River at Enterprise, KS '' ( PDF ). United States Geological Survey. Retrieved June 14, 2011. Jump up ^ `` Niobrara River ''. Geographic Names Information System. United States Geological Survey ( USGS ). March 9, 1979. Retrieved July 5, 2011. Jump up ^ Benke & Cushing 2005, p. 478. Jump up ^ Personius, Robert Giles ; Eddy, Samuel ( February 18, 1955 ). `` Fishes of the Little Missouri River ''. Copeia. American Society of Ichthyologists and Herpetologists. 1955 ( 1 ) : 41. doi : 10.2307 / 1439450. Jump up ^ `` Little Missouri River ''. Geographic Names Information System. United States Geological Survey ( USGS ). February 13, 1980. Retrieved February 23, 2011. ^ Jump up to : `` USGS 06337000 Little Missouri River near Watford City, ND ''. November 2010. Retrieved February 23, 2011. Jump up ^ Benke & Cushing 2005, p. 208. Jump up ^ `` Sabine River ''. Geographic Names Information System. United States Geological Survey ( USGS ). June 4, 1980. Retrieved February 7, 2011. Jump up ^ Benke & Cushing 2005, p. 224. Jump up ^ `` Red River of the North ''. Minnesota Department of Natural Resources. 2011. Retrieved January 22, 2011. Jump up ^ `` Red River of the North : A Water Trail Guide '' ( PDF ). Minnesota Department of Natural Resources. 2010. Retrieved February 19, 2011. Jump up ^ `` Red River of the North ''. Geographic Names Information System. United States Geological Survey ( USGS ). January 1, 2000. Retrieved January 17, 2011. Jump up ^ `` Red River ''. Natural Resources Canada. Archived from the original on July 6, 2011. Retrieved January 17, 2011. Jump up ^ Benke & Cushing 2005, p. 896. Jump up ^ `` National Recreation Trails : Des Moines River Water Trail - Polk County, Iowa ''. American Trails. Retrieved February 5, 2011. Jump up ^ `` Des Moines River ''. Geographic Names Information System. United States Geological Survey ( USGS ). April 30, 1979. Retrieved February 7, 2011. Jump up ^ Benke & Cushing 2005, p. 372. Jump up ^ Benke & Cushing 2005, p. 445. Jump up ^ `` White River ''. Geographic Names Information System. United States Geological Survey ( USGS ). February 13, 1980. Retrieved February 7, 2011. Jump up ^ Benke & Cushing 2005, p. 471. Jump up ^ Benke & Cushing 2005, p. 215. Jump up ^ `` Trinity River ''. Geographic Names Information System. United States Geological Survey ( USGS ). November 30, 1979. Retrieved February 7, 2011. Jump up ^ Benke & Cushing 2005, p. 227. Jump up ^ `` Wabash River ''. Geographic Names Information System. United States Geological Survey ( USGS ). February 14, 1979. Retrieved July 5, 2011. Jump up ^ Benke & Cushing 2005, p. 396. Works cited Benke, Arthur C. ; Cushing, Colbert E. ( 2005 ). Rivers of North America. Burlington, Massachusetts : Elsevier Academic Press. ISBN 978 - 0 - 12 - 088253 - 3. Patrick, Ruth ( 1995 ). Rivers of the United States : Volume II : Chemical and Physical Characteristics. New York : John Wiley & Sons. p. 24. ISBN 978 - 0 - 471 - 10752 - 1. Retrieved from `` https://en.wikipedia.org/w/index.php?title=List_of_longest_rivers_of_the_United_States_(by_main_stem)&oldid=807777678 '' Categories : Lists by length Lists of rivers of the United States United States - related lists of superlatives Hidden categories : Featured lists Talk Contents About Wikipedia فارسی Latina Polski 中文 Edit links This page was last edited on 30 October 2017, at 02 : 07. Text is available under the Creative Commons Attribution - ShareAlike License ; additional terms may apply. By using this site, you agree to the Terms of Use and Privacy Policy. 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Question: what is the longest river in the united states
Answer: Missouri River; Missouri River; Missouri River; Missouri River