Marker title
Image
City
Location
Topics
Aberdeen Proving Ground
Aberdeen, Maryland
US 40 (median), west of MD 13239°30′26.40″N 76°09′53.68″W / 39.5073333°N 76.1649111°W / 39.5073333; -76.1649111 (Aberdeen Proving Ground )
[2]
Bel Air - County Seat of Harford County
Bel Air, Maryland
Main Street at Office Street and Courtland Street39°32′07″N 76°20′58″W / 39.53528°N 76.34944°W / 39.53528; -76.34944 (Bel Air - County Seat of Harford County )
[3]
Berkley Crossroads
Darlington, Maryland
2398 Castleton Rod (MD 263) southbound, N of Berkley Rd.39°39′42″N 76°12′33″W / 39.66167°N 76.20917°W / 39.66167; -76.20917 (Berkley Crossroads )
[4]
Black Horse Tavern
Blackhorse, Maryland
MD 23 (southbound) at MD 13839°37′29″N 76°33′02″W / 39.62472°N 76.55056°W / 39.62472; -76.55056 (Black Horse Tavern )
[5]
Calvary United Methodist Church
Churchville, Maryland
MD 136 (northbound), 1321 Calvary Road39°31′38.61″N 76°15′47.46″W / 39.5273917°N 76.2631833°W / 39.5273917; -76.2631833 (Calvary United Methodist Church )
[6]
Capt. Angus Greme
Churchville, Maryland
MD 136 (southbound) at Trappe Road39°37′01″N 76°15′30″W / 39.61694°N 76.25833°W / 39.61694; -76.25833 (Capt. Angus Greme )
[7]
Captain John Smith
Abingdon, Maryland
US 40 (eastbound) west of Otter Point Road, in park overlooking Otter Point Creek39°26′59.43″N 76°16′43.55″W / 39.4498417°N 76.2787639°W / 39.4498417; -76.2787639 (Captain John Smith )
[8]
Churchville
Churchville, Maryland
MD 22 at MD 136, northeast corner39°33′35″N 76°15′07″W / 39.55972°N 76.25194°W / 39.55972; -76.25194 (Churchville )
[9]
Colony of Maryland
Aberdeen, Maryland
I-95, Maryland House Rest Stop39°29′49″N 76°13′56″W / 39.49694°N 76.23222°W / 39.49694; -76.23222 (Colony of Maryland )
[10]
Concord Point Light Station
Havre de Grace, Maryland
Concord and Lafayette Streets39°32′27″N 76°05′06″W / 39.54083°N 76.08500°W / 39.54083; -76.08500 (Concord Point Light Station )
[11]
Conowingo
Conowingo, Maryland
US 1 (southbound), 0.25 mile south of dam39°39′18″N 76°10′48″W / 39.65500°N 76.18000°W / 39.65500; -76.18000 (Conowingo )
[12]
Constant Friendship
Abingdon, Maryland
Northbound MD 928, N of Porter Dr.39°28′13.4″N 76°18′34.3″W / 39.470389°N 76.309528°W / 39.470389; -76.309528 (Constant Friendship )
[13]
ENIAC
Aberdeen, Maryland
MD 22 between MD 7 and gate to Aberdeen Proving Ground39°30′23.22″N 76°09′12″W / 39.5064500°N 76.15333°W / 39.5064500; -76.15333 (ENIAC )
[14]
George Washington Traveled This Road
Havre de Grace, Maryland
St. John Street at Green Street39°32′58.15″N 76°05′22.79″W / 39.5494861°N 76.0896639°W / 39.5494861; -76.0896639 (George Washington Traveled This Road )
[15]
George Washington Traveled This Road
Havre de Grace, Maryland
Union Avenue at Franklin Street, southwest corner39°33′02.60″N 76°05′30.62″W / 39.5507222°N 76.0918389°W / 39.5507222; -76.0918389 (George Washington Traveled This Road )
[16]
George Washington Traveled This Road
Havre de Grace, Maryland
Union Avenue at Revolution, north of northwest corner39°32′37.27″N 76°05′29.75″W / 39.5436861°N 76.0915972°W / 39.5436861; -76.0915972 (George Washington Traveled This Road )
[17]
Hall's Cross Roads
Aberdeen, Maryland
MD 132 at E. Bel Air Avenue, southeast corner39°30′27.36″N 76°09′35.01″W / 39.5076000°N 76.1597250°W / 39.5076000; -76.1597250 (Hall's Cross Roads )
[18]
Harford Town or Bush
Bush, Maryland
MD 7 (westbound) at Bush Road, just west of bridge over Bynum Run39°28′17.42″N 76°16′02.06″W / 39.4715056°N 76.2672389°W / 39.4715056; -76.2672389 (Harford Town or Bush )
[19]
Harry Gilmor's Raid
Stockton, Maryland
MD 152 (southbound) at Old Joppa Road39°28′35″N 76°22′49″W / 39.47639°N 76.38028°W / 39.47639; -76.38028 (Harry Gilmor's Raid )
[20]
Havre de Grace Racetrack
Havre de Grace, Maryland
MD 7 (Old Post Road/ Revolution Street) at Old Bay Lane39°32′12.87″N 76°06′43.93″W / 39.5369083°N 76.1122028°W / 39.5369083; -76.1122028 (Havre de Grace Racetrack )
[21]
Havre de Grace War of 1812
Havre de Grace, Maryland
Lafayette Street at Concord Street (in park)39°32′26″N 76°05′05″W / 39.54056°N 76.08472°W / 39.54056; -76.08472 (Havre de Grace War of 1812 )
[22]
Indian Spring
Churchville, Maryland
MD 136 (east side), 2.0 miles south of MD 139°36′38″N 76°15′37″W / 39.61056°N 76.26028°W / 39.61056; -76.26028 (Indian Spring )
[23]
Jerusalem Mills
Jerusalem, Maryland
Jerusalem Road at Little Gunpowder Bridge39°27′44″N 76°23′28″W / 39.46222°N 76.39111°W / 39.46222; -76.39111 (Jerusalem Mills )
[24]
Joppa Town
Joppatowne, Maryland
Bridge Drive and Anchor Drive39°24′23.1″N 76°21′47.82″W / 39.406417°N 76.3632833°W / 39.406417; -76.3632833 (Joppa Town )
[25]
Ladew Topiary Gardens and Pleasant Valley House
Jarrettsville, Maryland
MD 146 (northbound), 0.8 mile south of MD 152, north of Pocock Road39°34′47.02″N 76°30′54.09″W / 39.5797278°N 76.5150250°W / 39.5797278; -76.5150250 (Ladew Topiary Gardens and Pleasant Valley House )
[26]
LaFayette - at Col. Rigbie's House
Darlington vicinity, Maryland
MD 623 (Castleton Road), approximately 1500 feet south of Berkley Road39°39′28.5″N 76°12′23.9″W / 39.657917°N 76.206639°W / 39.657917; -76.206639 (LaFayette - at Col. Rigbie's House )
[27]
Medical Hall
Churchville, Maryland
Northwest corner of MD Route 22 and Thomas Run Road39°33′18.9072″N 76°17′11.99″W / 39.555252000°N 76.2866639°W / 39.555252000; -76.2866639 (Medical Hall )
[28]
Old Post Road Established 1666 - Cokesbury College
Abingdon, Maryland
MD 7 (eastbound) at Cokesbury Road39°27′40.44″N 76°16′46.11″W / 39.4612333°N 76.2794750°W / 39.4612333; -76.2794750 (Old Post Road Established 1666 - Cokesbury College )
[29]
Old Post Road Established 1666 - Count Rochambeau's
Havre de Grace, Maryland
Lewis Lane (northbound), north of MD 739°32′33″N 76°06′07″W / 39.54250°N 76.10194°W / 39.54250; -76.10194 (Old Post Road Established 1666 - Count Rochambeau's )
[30]
Old Post Road Established 1666 - Gov. William Paca
Edgewood, Maryland
MD 7 (northbound), north of MD 2439°26′58″N 76°17′47″W / 39.44944°N 76.29639°W / 39.44944; -76.29639 (Old Post Road Established 1666 - Gov. William Paca )
[31]
Old Post Road Established 1666 - Spesutia P.E. Church
Aberdeen, Maryland
MD 7 (Old Philadelphia Road) at MD 159 (Perryman Road)39°29′16.99″N 76°11′27.76″W / 39.4880528°N 76.1910444°W / 39.4880528; -76.1910444 (Old Post Road Established 1666 - Spesutia P.E. Church )
[32]
Old Post Road Established 1666 - Susquehanna Lower Ferry
Havre de Grace, Maryland
St. John Street at Warren Street39°33′06.18″N 76°05′29.58″W / 39.5517167°N 76.0915500°W / 39.5517167; -76.0915500 (Old Post Road Established 1666 - Susquehanna Lower Ferry )
[33]
Olney
Joppa, Maryland
Old Joppa Road (eastbound), east of MD 15239°28′46″N 76°22′31″W / 39.47944°N 76.37528°W / 39.47944; -76.37528 (Olney )
[34]
Peach Bottom Slate Region
Whiteford, Maryland
on MD 165 north of MD 13639°42′48.94″N 76°20′51.56″W / 39.7135944°N 76.3476556°W / 39.7135944; -76.3476556 (Peach Bottom Slate Region )
[35]
Prospect School
Havre de Grace, Maryland
MD 161 at Green Spring Rd.39°35′51.1″N 76°11′28.8″W / 39.597528°N 76.191333°W / 39.597528; -76.191333 (Prospect School )
[36]
Rochambeau Plaza
Havre de Grace, Maryland
Washington Street at St. John Street and Green Street39°32′58.14″N 76°05′22.92″W / 39.5494833°N 76.0897000°W / 39.5494833; -76.0897000 (Rochambeau Plaza )
[37]
Rock Run
Rock Run, Maryland
Rock Run Road, 100 yds west of Stafford Road, Rock Run State Park39°36′28.15″N 76°08′37.84″W / 39.6078194°N 76.1438444°W / 39.6078194; -76.1438444 (Rock Run )
[38]
Rock Run Landing
Havre de Grace, Maryland
Rock Run Road at Stafford Road39°36′30″N 76°08′35″W / 39.60833°N 76.14306°W / 39.60833; -76.14306 (Rock Run Landing )
[39]
Saint Ignatius Church Hickory, Maryland
Bel Air, Maryland
US 1 Business, south of Jarrettsville Road39°34′24″N 76°21′15″W / 39.57333°N 76.35417°W / 39.57333; -76.35417 (Saint Ignatius Church Hickory, Maryland )
[40]
Site of "Old Baltimore"
, Maryland
Head of Bush River on US 4039°23′58.98″N 76°14′13.02″W / 39.3997167°N 76.2369500°W / 39.3997167; -76.2369500 (Site of "Old Baltimore" )
[41]
Site of Old Baltimore
Abingdon, Maryland
US 40 (eastbound) in park overlooking Otter Point Creek, west of Otter Point Road39°26′59.44″N 76°16′43.30″W / 39.4498444°N 76.2786944°W / 39.4498444; -76.2786944 (Site of Old Baltimore )
[42]
Sophia's Dairy
Belcamp, Maryland
US 40 (southbound), north of MD 543 (Riverside Pkway)39°28′18.72″N 76°13′58.62″W / 39.4718667°N 76.2329500°W / 39.4718667; -76.2329500 (Sophia's Dairy )
[43]
Spesutia Church
Perryman, Maryland
MD 159 (southbound), south of Spesutia Road39°28′24″N 76°12′14″W / 39.47333°N 76.20389°W / 39.47333; -76.20389 (Spesutia Church )
[44]
Spesutia Island
Aberdeen, Maryland
Spesutia Road at Woodpecker Point (at small roadside park)39°28′31.20″N 76°05′54.40″W / 39.4753333°N 76.0984444°W / 39.4753333; -76.0984444 (Spesutia Island )
[45]
State of Maryland
Aberdeen, Maryland
I-95, Maryland House Rest Stop39°29′50″N 76°13′54″W / 39.49722°N 76.23167°W / 39.49722; -76.23167 (State of Maryland )
[46]
Susquehanna River Crossing
Havre de Grace, Maryland
MD 7/N. Union Ave., south of Otsego St., at David R. Craig Park39°33′09.35″N 76°05′30.02″W / 39.5525972°N 76.0916722°W / 39.5525972; -76.0916722 (Susquehanna River Crossing )
[47]
The Bush Declaration Harford Town
Bush, Maryland
MD 7 (westbound), east of Bush Road39°28′22″N 76°15′57″W / 39.47278°N 76.26583°W / 39.47278; -76.26583 (The Bush Declaration Harford Town )
[48]
The General's Highway
Aberdeen, Maryland
NE corner of US Rte 40 (Pulaski Hwy) and W. Belair Ave.39°30′34.9338″N 76°09′48.8124″W / 39.509703833°N 76.163559000°W / 39.509703833; -76.163559000 (The General's Highway )
[49]
The Hays House
Bel Air, Maryland
324 Kenmore Avenue39°31′57.20″N 76°20′49.48″W / 39.5325556°N 76.3470778°W / 39.5325556; -76.3470778 (The Hays House )
[50]
The Lock House
Havre de Grace, Maryland
Park Drive at Conesteo Street39°33′22.00″N 76°05′40.00″W / 39.5561111°N 76.0944444°W / 39.5561111; -76.0944444 (The Lock House )
[51]
Tudor Hall
Bel Air, Maryland
MD 22 (southbound) at Tudor Lane39°33′00″N 76°18′02″W / 39.55000°N 76.30056°W / 39.55000; -76.30056 (Tudor Hall )
[52]