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USA Lower 48 Drainage Basin High Points

Basins with over 1500 square miles

Showing 's first ascent dates for climbed peaks (0 out of 0, or NaN%)

RankDrainage BasinArea-SqMiPeak Elev-Ft CountryRange (Level 4)
1.Mississippi1,251,272Mount Elbert14,433United StatesSawatch Range
2.St. Lawrence502,413Mount Marcy5344United StatesAdirondack Mountains
3.Columbia259,390Mount Rainier-Southeast Crater Rim14,200United StatesSouth Washington Cascades
4.Colorado249,676Uncompahgre Peak14,309United StatesSan Juan Mountains
5.Rio Grande222,823Blanca Peak14,345United StatesSangre de Cristo Range
6.Great Basin201,693Mount Whitney14,498United StatesSequoia Sierra Nevada
7.Brazos45,674Mississippi-Rio Grande-Brazos Triple Divide4740United StatesSouthern Great Plains
8.Alabama43,719Big Frog Mountain4200United StatesSouthern Blue Ridge Front
9.Colorado [TX]42,299Colorado Basin High Point4540United StatesSouthern Great Plains
10.Susquehanna27,456Blue Knob3120United StatesAllegheny Mountains
11.Sacramento26,786Mount Shasta14,162United StatesCalifornia Cascades
12.Sabine19,818Hunt County High Point730United StatesSouthern Great Plains
13.Apalachicola19,615Tray Mountain4430United StatesSouthern Blue Ridge Front
14.Trinity17,994Young County High Point1522United StatesSouthern Great Plains
15.Pee Dee17,882Thompkins Knob4080United StatesSouthern Blue Ridge Front
16.Nueces16,820Edwards County High Point2415United StatesSouthern Great Plains
17.South San Joaquin Basin16,381Mount Whitney14,498United StatesSequoia Sierra Nevada
18.San Joaquin15,760Mount Humphreys13,986United StatesCentral Sierra Nevada
19.Klamath15,624Mount Shasta14,162United StatesCalifornia Cascades
20.Santee15,392Grandfather Mountain5946United StatesSouthern Blue Ridge Front
21.Altamaha14,279Stone Mountain1680United StatesPiedmont
22.Potomac14,213Spruce Knob4861United StatesAllegheny Mountains
23.Suwanee13,576Crisp County High Point480United StatesPiedmont
24.Hudson13,424Mount Marcy5344United StatesAdirondack Mountains
25.Delaware12,880Slide Mountain4180United StatesCatskill Mountains
26.Connecticut11,253Mount Washington6288United StatesWhite Mountains
27.Savannah10,467Standing Indian5499United StatesSouthern Blue Ridge Front
28.Roanoke9,785Apple Orchard Mountain4225United StatesNorthern Blue Ridge
29.James9,676Little Ridge4546United StatesCentral Appalachian Ridges
30.St. John9,238Sugarloaf Mountain310United StatesSoutheast Coast
31.Cape Fear9,108Cape Fear Basin High Point1010United StatesPiedmont
32.Pearl [MS-LA]8,635Winston County High Point722United StatesSoutheast Coast
33.Penobscot8,544Katahdin5268United StatesLongfellow Mountains
34.Pascagoula8,487Circle Hill700United StatesSoutheast Coast
35.Salton Sea8,035San Gorgonio Mountain11,499United StatesTransverse Ranges
36.Guadalupe6,007Guadalupe Basin High Point2405United StatesSouthern Great Plains
37.Kennebec5,911Sugarloaf Mountain4240United StatesLongfellow Mountains
38.Neuse5,600Roxboro Hill890United StatesPiedmont
39.Rogue5,155Mount McLoughlin9495United StatesOregon Cascades
40.Merrimack5,020Mount Lafayette5240United StatesWhite Mountains
41.Chowan4,905Nottoway Basin High Point660United StatesPiedmont
42.Salinas4,687Junipero Serra Peak5862United StatesCentral California Coast Ranges
43.Umpqua4,665Mount Thielsen9182United StatesOregon Cascades
44.Ogeechee4,463Hancock County High Point745United StatesPiedmont
45.San Jacinto [TX]4,019Walker County High Point500United StatesSouthern Great Plains
46.Great Divide Basin3,908Ferris Mountain10,037United StatesGreat Divide Basin Area
47.Eel3,677Black Butte7448United StatesNorthern California Coast Range
48.Androscoggin3,512Mount Washington6288United StatesWhite Mountains
49.Owens Valley3,293Mount Whitney14,498United StatesSequoia Sierra Nevada
50.Tar3,178Granville County High Point740United StatesPiedmont
51.Skagit3,143Mount Baker10,781United StatesNorth Cascades
52.Mattaponi2,604Peters Mountain1820United StatesNorthern Blue Ridge
53.Rappahannock2,571Hawksbill4050United StatesNorthern Blue Ridge
54.Edisto2,440Saluda County High Point680United StatesPiedmont
55.Lavaca2,256Gonzales County High Point590United StatesSouthern Great Plains
56.Chehalis2,123Capitol Peak5054United StatesOlympic Mountains
57.Saint Croix1,985Musquash Mountain1220United StatesNew England Upland
58.Housatonic1,930Mount Everett2608United StatesTaconic Range
59.Santa Maria1,820Sawmill Mountain-West Peak8749United StatesTransverse Ranges
60.Snohomish1,806Mount Daniel7960United StatesSouth Washington Cascades
61.Saco1,698Mount Washington6288United StatesWhite Mountains
62.Santa Ana1,691San Gorgonio Mountain-Northwest Slope11,400United StatesTransverse Ranges
63.Wilcox Playa1,680Mount Graham10,720United StatesSoutheast Arizona Ranges
64.Thames [CT]1,622Burley Hill1316United StatesNew England Upland
65.Santa Clara1,605Mount Pinos8831United StatesTransverse Ranges

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