[3] Landmark name
Image
Location
County
Comments
1
Allegheny Aqueduct [4]
Robeson Township : Pennsylvania Route 724 and Allegheny Creek at Gibraltar40°17′10″N 75°53′13″W / 40.28611°N 75.88694°W / 40.28611; -75.88694 (Allegheny Aqueduct ) Berks
A section of the Schuylkill Canal
2
Alliance Furnace [5]
Perry Township : off Township 568 at Jacob's Creek, northeast of Perryopolis40°6′45″N 79°43′3″W / 40.11250°N 79.71750°W / 40.11250; -79.71750 (Alliance Furnace ) Fayette
Remnants of a blast furnace complex
3
Barree Forge and Furnace [6]
Porter Township : 2 miles (3.2 km) north of Alexandria along the Juniata River 40°35′18″N 78°6′4″W / 40.58833°N 78.10111°W / 40.58833; -78.10111 (Barree Forge and Furnace ) Huntingdon
Remnants of a blast furnace complex
4
Beaver Historic District [7]
Beaver : roughly bounded by the Cumberland and Pennsylvania Railroad tracks, Fair Ave., 5th St., 3rd St., and Sassafras Ln.40°41′41″N 80°18′27″W / 40.69472°N 80.30750°W / 40.69472; -80.30750 (Beaver Historic District ) Beaver
Includes the site of Fort McIntosh
5
Boswell Historic District [8]
Boswell : roughly bounded by Hower Ave., Atkinson Way, Quemahoning Creek, Main St., and Juniata St.
Somerset
Coal mining company town
6
Bradys Bend Iron Company Furnaces [9]
Bradys Bend Township : Pennsylvania Route 68 in Bradys Bend40°59′55″N 79°37′34″W / 40.99861°N 79.62611°W / 40.99861; -79.62611 (Bradys Bend Iron Company Furnaces ) Armstrong
Remnants of a blast furnace complex
7
George Brinton House [10]
Birmingham Township : Pennsylvania Route 100 , 1 mile north of its junction with U.S. Route 1 , near Chadds Ford 39°52′51″N 75°35′56″W / 39.88083°N 75.59889°W / 39.88083; -75.59889 (George Brinton House )
Chester
Includes artifacts of the Battle of Brandywine
8
John Brown Tannery Site [11]
Richmond Township : 500 feet south of the junction of Pennsylvania Route 77 and Lyons Rd. at New Richmond41°43′8.5″N 79°57′3″W / 41.719028°N 79.95083°W / 41.719028; -79.95083 (John Brown Tannery Site ) Crawford
Ruins of a tannery operated by abolitionist John Brown
9
Brown-Moore Blacksmith Shop [12]
Luzerne Township : 0.1 miles (0.16 km) west of Pennsylvania Route 402039°58′23″N 79°53′55″W / 39.97306°N 79.89861°W / 39.97306; -79.89861 (Brown-Moore Blacksmith Shop ) Fayette
Well-preserved early nineteenth-century blacksmith shop
10
Jeremiah Burns Farm [13]
Washington Township : 10988 Fish and Game Rd.39°45′58.464″N 77°31′47.46″W / 39.76624000°N 77.5298500°W / 39.76624000; -77.5298500 (Burns, Jeremiah, Farm ) Franklin
Includes an early sawmill and log cabin site
11
Cairnbrook Historic District [14]
Shade Township : roughly bounded by the Penn Central railroad tracks, McGregor Ave., Windber Ave., and John St.40°7′20″N 78°48′59″W / 40.12222°N 78.81639°W / 40.12222; -78.81639 (Cairnbrook Historic District ) Somerset
Coal mining company town
12
Chad House [15]
Chadds Ford Township : Pennsylvania Route 100 39°52′29″N 75°35′31″W / 39.87472°N 75.59194°W / 39.87472; -75.59194 (Chad House ) Delaware
Includes artifacts of the Battle of Brandywine
13
Chester Creek Historic District [16]
Thornbury Township : north, east, and south of Glen Mills along the western branch of Chester Creek39°55′23″N 75°29′27″W / 39.92306°N 75.49083°W / 39.92306; -75.49083 (Chester Creek Historic District ) Delaware
Includes multiple early industrial sites
14
Chickies Historic District [17]
East Donegal and West Hempfield Townships: roughly bounded by the Susquehanna River , Chickies Creek, Bank Street, and Long Lane, near Marietta
Lancaster
Includes an early mill site
15
Codorus Forge and Furnace Historic District [18]
Hellam Township : junction of River Farm and Furnace Rds., southeast of Saginaw40°3′5″N 76°39′26″W / 40.05139°N 76.65722°W / 40.05139; -76.65722 (Codorus Forge and Furnace Historic District ) York
Remnants of a blast furnace complex
16
Crosley-Garrett Mill Workers' Housing, Store and Mill Site [19]
Newtown Township : Paper Mill Rd. and St. David's Rd.40°1′9″N 75°24′16″W / 40.01917°N 75.40444°W / 40.01917; -75.40444 (Crosley-Garrett Mill Workers' Housing, Store and Mill Site ) Delaware
Industrial company town
17
Dale Furnace and Forge Historic District [20]
Washington Township : Forgedale Rd. northwest of Bally40°25′21″N 75°37′1″W / 40.42250°N 75.61694°W / 40.42250; -75.61694 (Dale Furnace and Forge Historic District ) Berks
Remnants of a blast furnace complex
18
Dreibelbis Mill [21]
Perry Township : junction of Dreibelbis Mill and Bellevue Rds.40°30′22″N 75°57′23″W / 40.50611°N 75.95639°W / 40.50611; -75.95639 (Dreibelbis Mill ) Berks
Nineteenth-century gristmill
19
Dykeman's Spring [22]
Shippensburg : Dykeman Rd., 0.25 miles (0.40 km) east of Pennsylvania Route 696 40°2′33″N 77°30′57″W / 40.04250°N 77.51583°W / 40.04250; -77.51583 (Dykeman's Spring ) Cumberland
Includes military artifacts from the Civil War ; also includes a Native American site
20
Etna Furnace [23]
Catharine Township : north of Williamsburg — roughly the area south and east of the bend of the Frankstown Branch Juniata River at Mount Etna40°31′34″N 78°11′11″W / 40.52611°N 78.18639°W / 40.52611; -78.18639 (Etna Furnace ) Blair
Remnants of a blast furnace complex
21
Forks of the Ohio [24]
Pittsburgh : Point Park40°26′27″N 80°0′37″W / 40.44083°N 80.01028°W / 40.44083; -80.01028 (Forks of the Ohio ) Allegheny
Includes the site of Fort Pitt
22
Fort Hunter Historic District [25]
Susquehanna Township : U.S. Route 22 40°20′29″N 76°54′30″W / 40.34139°N 76.90833°W / 40.34139; -76.90833 (Fort Hunter Historic District ) Dauphin
Includes the site of Fort Hunter, built in the 1750s
23
Fort McIntosh Site [26]
Beaver : on a bluff overlooking the Ohio River , along River Rd. between College and Dravo Aves.40°41′27.35″N 80°18′14.75″W / 40.6909306°N 80.3040972°W / 40.6909306; -80.3040972 (Fort McIntosh Site ) Beaver
Site of the first U.S. Army fort north of the Ohio River
24
Gettysburg National Military Park [27]
Cumberland , Highland , and Straban Townships: Gettysburg National Military Park, near Gettysburg39°48′43″N 77°14′39″W / 39.81194°N 77.24417°W / 39.81194; -77.24417 (Gettysburg National Military Park ) Adams
Site of the Battle of Gettysburg
25
Geiger Mill [28]
Robeson Township : junction of Mill Rd. and Pennsylvania Route 82 in Geiger40°12′0″N 75°50′15″W / 40.20000°N 75.83750°W / 40.20000; -75.83750 (Geiger Mill ) Berks
Late eighteenth-century gristmill
26
Greenwood Furnace [29]
Jackson Township : Pennsylvania Route 305 in Greenwood Furnace State Park , east of McAlevys Fort40°38′48″N 77°46′41″W / 40.64667°N 77.77806°W / 40.64667; -77.77806 (Greenwood Furnace ) Huntingdon
Remnants of a blast furnace complex
27
Guldin Mill [30]
Maidencreek Township : off Pennsylvania Route 73 southeast of its junction with U.S. Route 222 40°26′8″N 75°52′42″W / 40.43556°N 75.87833°W / 40.43556; -75.87833 (Guldin Mill ) Berks
Early nineteenth-century gristmill
28
Holicong Village Historic District [31]
Buckingham Township : U.S. Route 202 and Holicong Rd. at Holicong40°20′9″N 75°2′55″W / 40.33583°N 75.04861°W / 40.33583; -75.04861 (Holicong Village Historic District ) Bucks
Eighteenth-century village
29
Hower-Slote House [32]
Lewis Township : west of Turbotville41°6′6″N 76°47′45″W / 41.10167°N 76.79583°W / 41.10167; -76.79583 (Hower-Slote House ) Northumberland
Includes part of the site of Fort Freeland, built during the American Revolutionary War
30
Independence National Historical Park [33]
Philadelphia : bounded by Walnut, 6th, Chestnut, and 2nd Sts.39°56′52″N 75°8′53″W / 39.94778°N 75.14806°W / 39.94778; -75.14806 (Independence National Historical Park ) Philadelphia
Includes Independence Hall
31
Irwintown Site[34]
Spring Creek Township : northern bank of the Allegheny River , above Hallton41°24′3″N 78°54′23″W / 41.40083°N 78.90639°W / 41.40083; -78.90639 (Irwintown Site ) Elk
Remains of a nineteenth-century logging town
32
Jacobsburg Historic District [35]
Bushkill Township : 3 miles (4.8 km) northeast of Nazareth off Pennsylvania Route 115 40°46′57″N 75°17′34″W / 40.78250°N 75.29278°W / 40.78250; -75.29278 (Jacobsburg Historic District ) Northampton
Eighteenth-century industrial village
33
Nicholas Johnson Mill [36]
Colebrookdale Township : Mill Crest Rd.40°20′58″N 75°37′12″W / 40.34944°N 75.62000°W / 40.34944; -75.62000 (Nicholas Johnson Mill ) Berks
Nineteenth-century gristmill
34
Kauffman Mill [37]
Upper Bern Township : junction of Mill and Mill Hill Rds.40°31′30″N 76°3′47″W / 40.52500°N 76.06306°W / 40.52500; -76.06306 (Kauffman Mill ) Berks
Late eighteenth-century gristmill
35
Kise Mill Bridge Historic District [38]
Newberry Township : junction of Kise Mill and Roxberry Rds., east of Lewisberry40°6′59.5″N 76°48′35.9″W / 40.116528°N 76.809972°W / 40.116528; -76.809972 (Kise Mill Bridge Historic District ) York
Remnants of an early nineteenth-century industrial complex
36
Knabb-Bieber Mill [39]
Oley Township : Bieber Mill Rd. at Monocacy Creek 40°21′33″N 75°48′38″W / 40.35917°N 75.81056°W / 40.35917; -75.81056 (Knabb-Bieber Mill ) Berks
Early nineteenth-century gristmill
37
Knipe-Johnson Farm [40]
Upper Gwynedd Township : 606 DeKalb Pike40°13′2″N 75°15′4″W / 40.21722°N 75.25111°W / 40.21722; -75.25111 (Knipe-Johnson Farm ) Montgomery
Includes sites of late eighteenth-century agricultural buildings
38
Lehigh Canal: Eastern Section Glendon and Abbott Street Industrial Sites [41]
Easton : Lehigh River from Hopeville to its confluence with the Delaware River , west of 40°39′24″N 75°17′41″W / 40.65667°N 75.29472°W / 40.65667; -75.29472 (Lehigh Canal: Eastern Section Glendon and Abbott Street Industrial Sites ) Northampton
A section of the Lehigh Canal
39
Legionville [42]
Harmony Township : between the Ohio River and Duss Ave., north of its intersection with Legionville Rd. and south of its intersection with Anthony Wayne Dr.40°37′16″N 80°13′42″W / 40.62111°N 80.22833°W / 40.62111; -80.22833 (Legionville ) Beaver
Site of the first official U.S. Army training camp
40
Locust Grove [43]
Conoy Township : south of Bainbridge off Pennsylvania Route 441 40°4′44″N 76°39′38″W / 40.07889°N 76.66056°W / 40.07889; -76.66056 (Locust Grove ) Lancaster
Late eighteenth-century farmhouse
41
Israel and Samuel Lupfer Tannery Site and House [44]
Jackson and Toboyne Townships: Black Hollow Rd.40°16′54.4″N 77°32′1.6″W / 40.281778°N 77.533778°W / 40.281778; -77.533778 (Lupfer, Israel and Samuel, Tannery Site and House ) Perry
Remnants of a nineteenth-century tannery
42
Mill Creek Historic District [45]
Lower Merion Township : near and east of Bryn Mawr; also roughly bounded by the Schuylkill River , Mill Creek, and Righter's Mill, Rose Glen, and Monk's Rds.40°1′32″N 75°17′8″W / 40.02556°N 75.28556°W / 40.02556; -75.28556 (Mill Creek Historic District ) Montgomery
Includes multiple eighteenth-century industrial complexes
43
Millmont Farm [46]
Montgomery Township : east of Mercersburg at the junction of Pennsylvania Routes 16 and 416 39°48′16″N 77°52′24″W / 39.80444°N 77.87333°W / 39.80444; -77.87333 (Millmont Farm ) Franklin
Includes a late eighteenth-century gristmill
44
Minersville Coke Ovens [47]
Carbon Township : Pennsylvania Route 913 , 1 mile (1.6 km) east of Coalmont40°13′0″N 78°11′3″W / 40.21667°N 78.18417°W / 40.21667; -78.18417 (Minersville Coke Ovens ) Huntingdon
A complex of coke ovens
45
Monroe Furnace [48]
Barree Township : junction of Pennsylvania Route 26 and Legislative Route 31076, 6 miles (9.7 km) northwest of McAlevys Fort40°41′43″N 77°53′41″W / 40.69528°N 77.89472°W / 40.69528; -77.89472 (Monroe Furnace ) Huntingdon
Remnants of a blast furnace complex
46
Mount Hope Estate [49]
Penn and Rapho Townships: northwest of Manheim on Pennsylvania Route 72 ; also roughly along Shearer's Creek, east of Mansion House Rd. and north of the Pennsylvania Turnpike 40°13′37″N 76°25′47″W / 40.22694°N 76.42972°W / 40.22694; -76.42972 (Mount Hope Estate ) Lancaster
Includes remnants of a blast furnace complex
47
Muddy Creek Forks Historic District [50]
East Hopewell , Fawn , and Lower Chanceford Townships: junction of Muddy Creek Forks and New Park Rds. at Muddy Creek Forks39°48′27″N 76°28′31″W / 39.80750°N 76.47528°W / 39.80750; -76.47528 (Muddy Creek Forks Historic District ) York
Includes the remnants of an eighteenth-century mill complex
48
Jacob Nicholas House [51]
Easton : 458 Ferry St.40°41′22″N 75°12′47″W / 40.68944°N 75.21306°W / 40.68944; -75.21306 (Jacob Nicholas House ) Northampton
One of six buildings in Easton built before the American Revolution
49
North Warwick Historic and Archeological District [52]
Warwick Township : Pennsylvania Route 345 and Harmonyville, Bethesda, Hopewell, Piersol, Trythall, and Northside Rds.40°11′18″N 75°46′8″W / 40.18833°N 75.76889°W / 40.18833; -75.76889 (North Warwick Historic and Archeological District ) Chester
Includes eighteenth- and nineteenth-century industrial complexes; also includes a Native American site
50
Pennsbury Manor [53]
Falls Township : on the Delaware River south of Bordentown Rd.40°8′0″N 74°46′12″W / 40.13333°N 74.77000°W / 40.13333; -74.77000 (Pennsbury Manor ) Bucks
Site of the home of William Penn
51
Pennsylvania Canal Guard Lock and Feeder Dam, Raystown Branch [54]
Henderson Township : 2.5 miles (4.0 km) east of Huntingdon, south of U.S. Route 22 on the Juniata River 40°26′59″N 77°58′9″W / 40.44972°N 77.96917°W / 40.44972; -77.96917 (Pennsylvania Canal Guard Lock and Feeder Dam, Raystown Branch ) Huntingdon
A section of the Pennsylvania Canal
52
The Printzhof [55]
Tinicum Township : Taylor Ave. and 2nd St. in Essington39°51′40″N 75°18′11″W / 39.86111°N 75.30306°W / 39.86111; -75.30306 (Printzhof, The ) Delaware
Site of a leading building of New Sweden
53
Rice's Landing Historic District [56]
Rices Landing : roughly bounded by the Monongahela River and Water, 2nd, Bayard, Carmichael, High, Main, and Ferry, including Pumpkin Run Peak39°56′57″N 80°0′0″W / 39.94917°N 80.00000°W / 39.94917; -80.00000 (Rice's Landing Historic District ) Greene
Includes remains of nineteenth-century industrial buildings
54
Ridley Creek State Park [57]
Edgmont Township : northwest of Media between Pennsylvania Routes 3 and 352 39°57′13″N 75°26′41″W / 39.95361°N 75.44472°W / 39.95361; -75.44472 (Ridley Creek State Park ) Delaware
Comprises multiple former farms as old as the late seventeenth century
55
Robertsdale Historic District [58]
Wood Township : roughly bounded by the USGS 1840 contour line and S. Main, Wood, Lincoln, Cliff, and Cherry Sts., in Robertsdale40°11′1″N 78°6′45″W / 40.18361°N 78.11250°W / 40.18361; -78.11250 (Robertsdale Historic District ) Huntingdon
Coal mining company town
56
Robesonia Furnace Historic District [59]
Robesonia : Furnace, S. Church, and Freeman Sts. and Mountain and E. Meadow Aves.40°20′34″N 76°8′26″W / 40.34278°N 76.14056°W / 40.34278; -76.14056 (Robesonia Furnace Historic District ) Berks
Remnants of a blast furnace complex
57
Rock Hill Farm [60]
Montgomery Township : 12995 and 12755 Bain Rd. near Mercersburg39°45′7″N 77°52′8″W / 39.75194°N 77.86889°W / 39.75194; -77.86889 (Rock Hill Farm ) Franklin
Includes the ruins of an early seventeenth-century outbuilding
58
Saltsburg Historic District [61]
Saltsburg : roughly west of Plum and Walnut Alleys to the Kiskiminetas River 40°29′2″N 79°27′4″W / 40.48389°N 79.45111°W / 40.48389; -79.45111 (Saltsburg Historic District ) Indiana
Includes a segment of the Pennsylvania Canal
59
Shade Furnace Archaeological District [62]
Shade Township : north of Rockingham above Dark Shade Creek40°9′11.22″N 78°49′41.88″W / 40.1531167°N 78.8283000°W / 40.1531167; -78.8283000 (Shade Furnace Archaeological District ) Somerset
Remnants of a blast furnace complex
60
Siegfried's Dale Farm [63]
Maxatawny Township : Siegfried's Rd.40°32′58″N 75°43′23″W / 40.54944°N 75.72306°W / 40.54944; -75.72306 (Siegfried's Dale Farm ) Berks
A cluster of eighteenth-century farms
61
Slickville Historic District [64]
Salem Township : roughly bounded by Greenburg and 2nd Aves. and Delmont, Court, Cottage and Fred Sts., in Slickville40°27′27″N 79°31′23″W / 40.45750°N 79.52306°W / 40.45750; -79.52306 (Slickville Historic District ) Westmoreland
Coal mining company town
62
Smock Historic District [65]
Franklin and Menallen Townships: roughly bounded by Redstone Cemetery, Colonial Mine No. 1, Smock Hill, Colonial Mine No. 2, and Redstone Creek at Smock39°59′58″N 79°47′5″W / 39.99944°N 79.78472°W / 39.99944; -79.78472 (Smock Historic District ) Fayette
Coal mining company town
63
Sommerheim Park Archaeological District [66]
Millcreek Township : on bluffs above Sommerheim Dr. and Presque Isle Bay 42°6′49″N 80°8′42″W / 42.11361°N 80.14500°W / 42.11361; -80.14500 (Sommerheim Park Archaeological District ) Erie
Includes a nineteenth-century trash heap , plus multiple Native American sites
64
Upper Roxborough Historic District [67]
Philadelphia and Whitemarsh Township : roughly bounded by Shawmont Ave., Hagy's Mill Rd., and the Schuylkill River 40°3′29″N 75°15′6″W / 40.05806°N 75.25167°W / 40.05806; -75.25167 (Upper Roxborough Historic District ) Montgomery ,Philadelphia
Includes the remnants of eighteenth-century industrial complexes
65
Robert Wilson House [68]
East Fallowfield Township : Strasburg Rd. near Coatesville39°57′9″N 75°50′32″W / 39.95250°N 75.84222°W / 39.95250; -75.84222 (Robert Wilson House ) Chester
Includes an early nineteenth-century tannery
66
Yoder Mill [69]
Pike Township : Yoder Rd. at Oysterville Creek40°23′48″N 75°43′14″W / 40.39667°N 75.72056°W / 40.39667; -75.72056 (Yoder Mill ) Berks
Nineteenth-century gristmill
67
York Iron Company Mine [70]
North Codorus Township : north of Green Valley Rd., south of Spring Grove39°50′29″N 76°48′35″W / 39.84139°N 76.80972°W / 39.84139; -76.80972 (York Iron Company Mine ) York
Remnants of a nineteenth-century iron mine
