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USA Lower 48 Triple Divide Points

Minimum basin size of 1500 square miles

Showing Tom Pomeroy's first ascent dates for climbed peaks (6 out of 55, or 10.91%)

RankPeak Elev-M
Basin 1Basin 2Basin 3Range (Level 3)Ascent Date
1.Mount Washington1917AndroscogginSacoConnecticutNorthern U.S. Appalachians2009-07-12
2.Watering Pond Knob-Northeast Ridge1329JamesMississippiPotomacAppalachian Ridges2009-10-24
3.Sassafrass Mountain-East Peak1085SanteeSavannahMississippiBlue Ridge Mountains2009-11-12
4.Mississippi-Susquehanna-Potomac Triple Divide Point872PotomacMississippiSusquehannaAppalachian Plateaus2010-06-10
5.Mississippi-Santee-Pee Dee Triple Divide1146Pee DeeSanteeMississippiBlue Ridge Mountains2010-09-11
6.Lula Triple Divide415SavannahAltamahaApalachicolaPiedmont-Southeast Coast2013-06-10
 Crumbly Spire4048South San Joaquin BasinOwens ValleySan JoaquinSierra Nevada 
 Headwaters Hill3616Rio GrandeMississippiColoradoSouthern Rocky Mountains 
 Three Waters Mountain-North Slope3548ColoradoColumbiaMississippiGreater Yellowstone Rockies 
 Reeds Peak3053Rio GrandeChihuahua BasinsColoradoSouthwest Basins and Ranges 
 Commissary Ridge Triple Divide3036ColoradoColumbiaGreat BasinWestern Rocky Mountains 
 Winnemucca Lake Southeast2999Great BasinSacramentoSan JoaquinSierra Nevada 
 Chiricahua Peak2975YaquiWilcox PlayaColoradoSouthwest Basins and Ranges 
 Sawmill Mountain-West Peak2667Santa MariaSanta ClaraSouth San Joaquin BasinCentral and Southern California Ranges 
 Oregon Buttes2608Great Divide BasinColoradoMississippiGreater Yellowstone Rockies 
 South Great Divide Basin Peak2597Great Divide BasinColoradoMississippiSouthern Rocky Mountains 
 Triple Divide Peak2444MississippiColumbiaNelsonCentral Montana Rocky Mountains 
 Miller Mountain2290KlamathUmpquaColumbiaCascade Range 
 Desert Ridge2132KlamathRogueUmpquaCascade Range 
 Colorado-Wilcox-Yaqui Triple Divide1964YaquiWilcox PlayaColoradoSouthwest Basins and Ranges 
 North Skylight Ridge1920EelKlamathSacramentoNorthwest U.S. Coast Ranges 
 Dishpan Gap North1796SkagitSnohomishColumbiaCascade Range 
 Sproats Meadow Northwest1743Great BasinKlamathColumbiaGreat Basin Ranges 
 Mud Lake East1591Great BasinKlamathSacramentoGreat Basin Ranges 
 Little Tejon1463Great BasinSanta ClaraSouth San Joaquin BasinCentral and Southern California Ranges 
 Mississippi-Rio Grande-Brazos Triple Divide1448BrazosMississippiRio GrandeGreat Plains 
 Rio Grande-Colorado-Brazos Triple Divide1367BrazosColorado [TX]Rio GrandeGreat Plains 
 Mount Field1329SacoMerrimackConnecticutNorthern U.S. Appalachians 
 Mount Field-Northwest Summit1317SacoMerrimackConnecticutNorthern U.S. Appalachians 
 Young Lick Knob1170SavannahApalachicolaMississippiBlue Ridge Mountains 
 Salmon Mountain1044St. LawrenceAndroscogginConnecticutNorthern U.S. Appalachians 
 Border Monument 441 Peak1024St. LawrenceAndroscogginKennebecNorthern U.S. Appalachians 
 Styles Peak-North Peak1008St. LawrenceHudsonConnecticutNorthern U.S. Appalachians 
 Long Mountain988AlabamaApalachicolaMississippiBlue Ridge Mountains 
 Brush Mountain - New-James-Roanoke Triple Divide872JamesRoanokeMississippiAppalachian Ridges 
 Mississippi-Roanoke-Pee Dee Triple Divide860RoanokePee DeeMississippiBlue Ridge Mountains 
 Woodchuck Hill823DelawareSusquehannaHudsonAppalachian Plateaus 
 Woodchuck Hill-East Peak817DelawareSusquehannaHudsonAppalachian Plateaus 
 Potter County Triple Divide Point774St. LawrenceMississippiSusquehannaAppalachian Plateaus 
 Colorado-Nueces-Guadalupe Triple Divide732Colorado [TX]GuadalupeNuecesGreat Plains 
 Webb Benchmark Northeast720Rio GrandeColorado [TX]NuecesGreat Plains 
 Hudson-Connecticut-Housatanic Triple Divide648HousatonicHudsonConnecticutNorthern U.S. Appalachians 
 Border Monument 318 Peak591St. LawrenceSaint JohnPenobscotNorthern U.S. Appalachians 
 Three Way Watershed Marker530MississippiSt. LawrenceNelsonMidwest-Great Lakes Area 
 Peters Mountain-Southwest Slope518RappahannockMattaponiJamesBlue Ridge Mountains 
 South Crow Hill506St. LawrenceHudsonSusquehannaAppalachian Plateaus 
 Trinity-Brazos-Red Triple Divide384BrazosTrinityMississippiGreat Plains 
 Kernersville Triple Divide311Cape FearRoanokePee DeePiedmont-Southeast Coast 
 Mississippi-Trinity-Sabine Triple Divide216SabineTrinityMississippiGreat Plains 
 Choctaw Lookout Tower207MississippiAlabamaPearl [MS-LA]Piedmont-Southeast Coast 
 Roanoke-Tar-Neuse Triple Divide198NeuseRoanokeTarPiedmont-Southeast Coast 
 James-Roanoke-Nottoway Triple Divide195JamesChowanRoanokePiedmont-Southeast Coast 
 Colorado-Guadalupe-Lavaca Triple Divide155GuadalupeColorado [TX]LavacaGreat Plains 
 Apalachicola-Altamaha-Suwanee Triple Divide146AltamahaSuwaneeApalachicolaPiedmont-Southeast Coast 
 Brazos-Trinity-San Jacinto Triple Divide119TrinityBrazosSan Jacinto [TX]Great Plains 

Front Runners List: Click here to see list completion progress by climbers that log their climbs using

Multiple Ascents Grid: Click here for a grid showing all of Tom Pomeroy's ascents of peaks on this list (including up to 10 rounds of repeats).

Compare Climbers: Click here to compare ascents of up to 5 climbers working on this list.

List Description

To be on this list, a peak must be the triple divide point of three basins of rivers that reach marine water, and the smallest of these basins must have an area of over 1500 square miles. This last condition excludes what could easily be hundreds of peaks that are triple divides that involve small rivers and tiny coastal creeks.

Also, this list only shows triple divide points for rivers that enter the ocean directly (or for well-defined internal drainages). Therefore, the entire Mississippi-Missouri-Ohio system is considered one basin, and triple divides that include two or three components of this system (e.g. the Colorado-Arkansas-Platte triple divide, where the Arkansas and Platte are both Mississippi tributaries) are not shown. This does leave out a large number of points in the central part of the United States, but most of these points would be low hills in relatively flat country.


Map Showing Location of Peaks

 = Peaks climbed by Tom Pomeroy   = Unclimbed peaks

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