Missouri Headwaters State Park

[2] The park includes the Three Forks of the Missouri National Historic Landmark, designated in 1960 because the site is one where the Lewis and Clark Expedition camped in 1805.Lewis and Clark were at first uncertain how to proceed, and scouted each of the branches before ultimately departing on July 30 up the Jefferson River.If the Jefferson were included in the Missouri length, it would technically still be considered the longest river by experts of the United States Geological Survey.The utmost headwaters of the Missouri are subject to debate but two commonly claimed locations ultimately drain into the Jefferson.Lewis on August 12, 1805 said he visited the headwaters on Trail Creek just above Lemhi Pass on the Continental Divide in the Beaverhead Mountains at around 8,600 feet which he described: In 1888 Jacob V. Brower, who had championed turning the headwaters of the Mississippi River into a Minnesota state park, visited another site which today is also claimed to be the furthest point on the Missouri.
Gallatin County, MontanaUnited StatesThree Forks, MontanaMontana state parkMontana Fish, Wildlife & ParksU.S. National Register of Historic PlacesU.S. National Historic LandmarkMissouri RiverNational Historic LandmarkLewis and Clark ExpeditionGallatin RiverMadison RiverJefferson RiversMeriwether LewisPresident of the United StatesTreasuryhydroelectric powerUnited States Geological SurveyLemhi PassContinental DivideBeaverhead MountainsJacob V. BrowerMinnesotaCentennial MountainsHellroaring CreekRed Rock RiverClark Canyon ReservoirBeaverheadBig Hole RiverList of National Historic Landmarks in MontanaNational Register of Historic Places listings in Gallatin County, MontanaGeographic Names Information SystemUnited States Department of the InteriorProtected areasMontanaFederalNational parksGlacierYellowstoneNational monumentsLittle Bighorn BattlefieldPompeys PillarUpper Missouri River BreaksNational battlefieldBig HoleNational historical parksand historic sitesGrant–Kohrs Ranch NHSNez Perce NHPNational historic and scenic trailsLewis and Clark NHTNez Perce NHTContinental Divide NSTPacific Northwest NSTNational recreation areaBighorn CanyonNational Wildlife RefugesBenton LakeBlack CouleeBowdoinCharles M. RussellCreedman CouleeGrass LakeHailstoneHewitt LakeLake MasonLake ThibadeauLamesteerLee MetcalfLost TrailMedicine LakeNinepipeRed Rock LakesSwan RiverUL BendWar HorseNational ForestsBeaverhead–DeerlodgeBitterrootCusterFlatheadGallatinHelenaKootenaiLewis and ClarkNational WildernessAbsaroka–BeartoothAnaconda–PintlerBear Trap CanyonBob MarshallCabinet MountainsGates of the MountainsGreat BearMission MountainsRattlesnakeScapegoatSelway–BitterrootWelcome CreekNational wild and scenic riversEast Rosebud CreekMissouriState parksAckley LakeAnaconda Smoke StackBannackBeaverhead RockBeavertail HillBig ArmBlack SandyBrush LakeChief Plenty CoupsClark's LookoutCooneyCouncil GroveElkhornFinleyFish CreekFirst Peoples Buffalo JumpFort OwenFrenchtown PondGiant SpringsGranite Ghost TownGreycliff Prairie Dog TownHell CreekLake ElmoLake Mary RonanLes MasonLewis and Clark CavernsLone PineLost CreekMadison Buffalo JumpMakoshikaMedicine RocksMilltownPainted RocksParker HomesteadPictograph CavePirogue IslandPlacid LakeRosebud BattlefieldSalmon LakeSluice BoxesSmith RiverSomers BeachSpring Meadow LakeThompson FallsTongue River ReservoirTower RockTravelers' RestWayfarersWest ShoreWhitefish LakeWild Horse IslandYellow BayState forestsClearwaterCoal CreekLincolnLubrecht ExperimentalStillwaterThompson RiverWildlifeManagementAreasAmelia IslandAmerican PrairieCSKT Bison RangeArchitectural style categoriesContributing propertyHistoric districtHistory of the National Register of Historic PlacesKeeper of the RegisterNational Park ServiceProperty typesList of U.S. National Historic Landmarks by stateAlabamaAlaskaArizonaArkansasCaliforniaColoradoConnecticutDelawareFloridaGeorgiaHawaiiIllinoisIndianaKansasKentuckyLouisianaMarylandMassachusettsMichiganMississippiNebraskaNevadaNew HampshireNew JerseyNew MexicoNew YorkNorth CarolinaNorth DakotaOklahomaOregonPennsylvaniaRhode IslandSouth CarolinaSouth DakotaTennesseeVermontVirginiaWashingtonWest VirginiaWisconsinWyomingAmerican SamoaMinor Outlying IslandsNorthern Mariana IslandsPuerto RicoVirgin IslandsFederated States of MicronesiaMarshall IslandsDistrict of ColumbiaAmerican Legation, MoroccoNational Historic Preservation ActHistoric Preservation FundList of jails and prisons on the National Register of Historic PlacesUniversity and college buildings listed on the National Register of Historic Places