This is a list of the Maryland state historical markers in Washington County.

This is intended to be a complete list of the official state historical markers placed in Washington County, Maryland by the Maryland Historical Trust (MHT). The locations of the historical markers, as well as the latitude and longitude coordinates as provided by the MHT's database, are included below. There are currently 43 historical markers located in Washington County.

Marker titleImageCityLocationTopicsAn Indian DeedSharpsburg, MarylandHarpers Ferry Road, south side of Antietam Iron Works Bridge (over Antietam Creek)Battle of FunkstownFunkstown, MarylandUS 40 Alt (Old National Pike) at East Green Street, northwest cornerBlackford's FordSharpsburg, MarylandMD 34 (Shepherdstown Pike) at Canal RoadBrownsville-Burkittsville PassBrownsville, MarylandMain Street (Boteler Road) at Brownsville Pass RoadConfederate RetreatRohrersville, MarylandGapland Road (south side), 800 ft. east of MD 67 (Rohrersville Road)Crampton GapRohrersville, MarylandMD 67 (Rohrersville Road), about 1/4 mile south of Gapland RoadCrampton's Gap, Maryland Heights and Pleasant ValleyBoonsboro, MarylandAlt US 40 (Old National Pike) south side, 100 ft. east of MD 67 (Rohrersville Road)Dam No. 5Clear Spring, MarylandDam No. 5 Road, at dam, above lock house and parking lotFalling WatersWilliamsport, MarylandFalling Waters Road end, gravel road adjacent to Hunt ClubFerry Hill PlaceSharpsburg, MarylandMD 34 (Shepherdstown Pike), east of Canal RoadFort CoombeHancock, MarylandHigh Street at Virginia Street, southwest cornerFort Frederick - Maryland State ParkClear Spring, MarylandUS 40 (National Pike) at Martin Street, northwest cornerFort Frederick - Maryland State ParkIndian Springs, MarylandUS 40 (National Pike) at MD 56 (Big Pool Road), southeast cornerFort MillsBig Pool, MarylandUS 40 (National Pike) at Park Head Methodist Church, 2.5 miles west of Indian SpringsGen. J.E.B. Stuart's CalvaryClear Spring, MarylandUS 40 (National Pike) at Cove Road, 3 miles west of Clear SpringGen. Robert E. LeeHagerstown, MarylandUS 40 Alt (Frederick Street), 0.3 mile south of Wilson BoulevardGeneral Edward BraddockSharpsburg, MarylandMD 34 (Main Street), 200 ft. east of Harper's Ferry RoadGeneral J.E.B. StuartWilliamsport, MarylandVirginia Avenue (US Route 11), 0.1 mile northeast of Tammany RoadJacob WheatonHagerstown, MarylandMD 65 (S. Potomac St.), east side, across from 727 S. Potomac St.John BrownDargan, MarylandChestnut Grove Road on Kennedy Farm, 1/2 mile north of Harpers Ferry RoadJonathan Hager HouseHagerstown, MarylandSouth Walnut Street, 0.1 mile north of South Prospect StreetJones' CrossroadsLappans, MarylandMD 68 (Lappans Road) at MD 65 (Sharpsburg Pike), 1 mile north of FairplayLancelot JacquesClear Spring, MarylandMD 56 (Big Pool Road) 40 meters southwest of McCoy Ferry RoadMason and Dixon Line 100th Mile StoneHagerstown, MarylandMarsh Pike at Maryland/Pennsylvania line, 5 miles northeast of HagerstownMason and Dixon Line 105th Mile StoneCearfoss, MarylandMD 63 (Greencastle Pike) west side, at Pennsylvania State LineMcCoy's FerryClear Spring, MarylandEnd of McCoy's Ferry Road, atop a tunnel at entrance to Canal ParkOld Mr. Flint's HomeHancock, MarylandMD 144 (Western Pike), 0.4 mile east of Roundtop Road, 0.2 mile west of Locher RoadRose HillWilliamsport, MarylandMD 63 (Spielman Road), 1.5 miles south of WilliamsportSpringfield FarmWilliamsport, MarylandMD 11 (Potomac Street) at Springfield LaneSt. Thomas ChurchHancock, MarylandMain Street (MD 144) at Church Street, northwest cornerStonewall Jackson's WayBoonsboro, MarylandUS 40 Alt (Main Street) at Lappans Road (MD 68), northwest cornerSwearingen's Ferry and Pack Horse FordSharpsburg, MarylandMD 34 (Shepherdstown Pike) at Canal Road, 1200 ft. east of Potomac RiverThe Bank RoadConococheague, MarylandEastbound US 40 west of Conococheague CreekThe Battle of Antietam or SharpsburgBoonsboro, MarylandUS 40 Alt (Old National Pike) north side, 0.15 mile west of MD 67 (Rohrersville Road)The Battle of Antietam or SharpsburgSharpsburg, MarylandMD 34 (Shepherdstown Pike) at Canal Road, 1200 ft. east of Potomac RiverThe Federal Signal StationClear Spring, MarylandUS 40 (National Pike), 2 miles east of MD 56 (Big Pool Road)The James Rumsey BridgeSharpsburg, MarylandMD 34 (Shepherdstown Pike) at Canal Road, 1200 ft. east of Potomac RiverThe Long MeadowHagerstown, MarylandMarsh Pike, 0.1 mile south of Blossom Lane, 3 miles northeast of HagerstownThomas KennedyHagerstown, MarylandMD 65 (S. Potomac Street) across from 649 South Potomac StreetTonoloway FortHancock, MarylandMD 144 (Western Pike) at Locher RoadWilliamsportWilliamsport, MarylandPotomac Street (US Route 11), 0.2 mile east of MD 63 (Greencastle Pike)Williamsport (Conococheague)Williamsport, MarylandAt Memorial Library, just east of Artizan Street and MD 11 (Potomac Street)Wilson BridgeConococheague, Marylandoff US 40 (National Pike), at Old Wilson Bridge

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