101 ► Pennsylvania, Allegheny County, Pittsburgh, East Liberty — 1st Drive-In Filling Station —

On Baum Boulevard (Pennsylvania Route 380) at South St. Clair Street, on the right when traveling east on Baum Boulevard.

102 ► Pennsylvania, Allegheny County, Pittsburgh, Hazelwood — Redman's Mills —

On Three Rivers Heritage Trail, 1.4 miles south of Hot Metal Bridge, on the right when traveling south.

103 ► Pennsylvania, Allegheny County, Pittsburgh, Lower Lawrenceville — Pittsburgh Brewing Company — Historic Landmark —

104 ► Pennsylvania, Allegheny County, Pittsburgh, Lower Lawrenceville — Pittsburgh Grease Plant —

On Smallman Street, 0.1 miles east of 33rd Street, on the right when traveling west.

105 ► Pennsylvania, Allegheny County, Pittsburgh, Middle Hill — Johnson Studio — Established 1923 —

Near Centre Avenue at Addison Street.

106 ► Pennsylvania, Allegheny County, Pittsburgh, Mount Washington — First Mining of Pittsburgh Coal —

On Grandview Avenue, 0 miles west of Bertha Street, on the right when traveling west.

107 ► Pennsylvania, Allegheny County, Pittsburgh, Neville Township — Dravo Corporation Shipyard —

Near Grand Avenue at Phillips Avenue.

108 ► Pennsylvania, Allegheny County, Pittsburgh, North Oakland — Andrew Carnegie — (1835-1919) —

Near Schenley Drive Extension.

109 ► Pennsylvania, Allegheny County, Pittsburgh, North Shore — "Piazza Lavoro" and "Mythic Source," 1984 — Ned Smyth (American, born 1948) — Aggregate and marble mosaic; Commissioned by the Heinz family and H.J. Heinz Company —

Near Isabella Street just west of Vulcan Way, on the left when traveling west.

110 ► Pennsylvania, Allegheny County, Pittsburgh, North Shore — "Pittsburgh Variations," 1984 — George Sugarman (American, born 1912) — Painted aluminum; Commissioned by The Hillman Fund of the Allegheny Conference on Community Developm —

Near Isabella Street just east of Vulcan Way, on the right when traveling east.

111 ► Pennsylvania, Allegheny County, Pittsburgh, North Shore — "The Forks," 1984 — Isaac Witkin (American, born South Africa, 1936) — Aluminum; Commissioned by Alcoa Foundation —

Near Federal Street, 0.1 miles south of Isabella Street, on the right when traveling north.

112 ► Pennsylvania, Allegheny County, Pittsburgh, North Shore — Allegheny Aqueduct — Three Rivers Heritage Trail —

Near North Shore Trail.

113 ► Pennsylvania, Allegheny County, Pittsburgh, North Shore — Allegheny City — Three Rivers Heritage Trail —

Near North Shore Trail.

114 ► Pennsylvania, Allegheny County, Pittsburgh, North Shore — Allegheny Cotton Mill Strikes —

115 ► Pennsylvania, Allegheny County, Pittsburgh, North Shore — Frederick J Osterling Office & Studio — National Historic Landmark —

On Isabella Street, 0.1 miles west of Anderson Street, on the left when traveling east.

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116 ► Pennsylvania, Allegheny County, Pittsburgh, North Shore — The Pittsburgh Point — Three Rivers Heritage Trail —

Near North Shore Trail.

117 ► Pennsylvania, Allegheny County, Pittsburgh, Point Breeze North — Westinghouse Gas Wells —

On Thomas Boulevard at North Murtland Street, on the right when traveling west on Thomas Boulevard.

118 ► Pennsylvania, Allegheny County, Pittsburgh, Regent Square — Early Land Use — Frick Park —

On South Braddock Avenue, 0.1 miles north of Biddle Avenue, on the left when traveling north.

119 ► Pennsylvania, Allegheny County, Pittsburgh, Regent Square — Influential Figures — Frick Park —

On South Braddock Avenue, 0.1 miles north of Biddle Avenue, on the left when traveling north.

120 ► Pennsylvania, Allegheny County, Pittsburgh, Shadyside — Portal of Industry — 1857 — The Pennsylvania Railroad Mainline —

Near South Highland Avenue, 0.1 miles south of Centre Avenue, on the left when traveling south.

121 ► Pennsylvania, Allegheny County, Pittsburgh, Shadyside — Shadyside Iron Furnace —

On Bayard Street at Amberson Avenue, on the right when traveling east on Bayard Street.

122 ► Pennsylvania, Allegheny County, Pittsburgh, Shadyside — Suburban Catalyst — 1890 — The Pennsylvania Railroad Mainline —

Near South Highland Avenue, 0.1 miles south of Centre Avenue, on the right when traveling south.

123 ► Pennsylvania, Allegheny County, Pittsburgh, South Oakland — Eliza Furnace — Three Rivers Heritage Trail —

Near Three Rivers Heritage Trail.

124 ► Pennsylvania, Allegheny County, Pittsburgh, South Oakland — Iron and Steel Workers — Three Rivers Heritage Trail —

Near Three Rivers Heritage Trail.

125 ► Pennsylvania, Allegheny County, Pittsburgh, South Oakland — Jones and Laughlin —

Near Three Rivers Heritage Trail.

126 ► Pennsylvania, Allegheny County, Pittsburgh, South Shore — Bessemer Converter —

Near Station Square East.

127 ► Pennsylvania, Allegheny County, Pittsburgh, South Shore — Chuck Muer —

Near Three Rivers Heritage Trail, on the right when traveling east.

128 ► Pennsylvania, Allegheny County, Pittsburgh, South Shore — Clinton Furnace —

Near West Station Square just east of Commerce Drive, on the right when traveling west.

129 ► Pennsylvania, Allegheny County, Pittsburgh, South Shore — Pittsburgh Glass Works —

On West Carson Street (Pennsylvania Route 837), on the right when traveling south.

130 ► Pennsylvania, Allegheny County, Pittsburgh, South Side Flats — 4600 East Carson Street —

On Three Rivers Heritage Trail, 1.3 miles south of Hot Metal Bridge, on the right when traveling south.

131 ► Pennsylvania, Allegheny County, Pittsburgh, South Side Flats — Cast Iron Columns —

Near South 27th Street at South Water Street, on the left when traveling south.

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132 ► Pennsylvania, Allegheny County, Pittsburgh, South Side Flats — Coal Tipple —

On Three Rivers Heritage Trail, 1.3 miles south of Hot Metal Bridge, on the right when traveling south.

133 ► Pennsylvania, Allegheny County, Pittsburgh, South Side Flats — Hub of Activity —

On Three Rivers Heritage Trail, 0.3 miles west of Hot Metal Bridge, on the right when traveling west.

134 ► Pennsylvania, Allegheny County, Pittsburgh, South Side Flats — Immigrant Steel Workers — Three Rivers Heritage Trail —

On Three Rivers Heritage Trail, 0.1 miles west of South 18th Street, on the right when traveling west.

135 ► Pennsylvania, Allegheny County, Pittsburgh, South Side Flats — Jones & Laughlin Steel Company — 1853-1984

On Three Rivers Heritage Trail, 0.3 miles west of Hot Metal Bridge, on the right when traveling west. Reported damaged.

136 ► Pennsylvania, Allegheny County, Pittsburgh, South Side Flats — Making Steel The J&L Way

On Three Rivers Heritage Trail, 0.2 miles west of Hot Metal Bridge, on the right when traveling west. Reported damaged.

137 ► Pennsylvania, Allegheny County, Pittsburgh, South Side Flats — Materials Handling — Slag Pots — Rivers of Steel National Heritage Area —

Near Three Rivers Heritage Trail at South 28th Street.

138 ► Pennsylvania, Allegheny County, Pittsburgh, South Side Flats — Oliver Iron and Steel — Three Rivers Heritage Trail —

On Three Rivers Heritage Trail, 0.5 miles east of South 4th Street, on the left when traveling east.

139 ► Pennsylvania, Allegheny County, Pittsburgh, South Side Flats — Open Hearth Steel — River Pump House — Rivers of Steel National Heritage Area —

Near Three Rivers Heritage Trail.

140 ► Pennsylvania, Allegheny County, Pittsburgh, South Side Flats — Pennsylvania Canal in Pittsburgh — Three Rivers Heritage Trail —

On Three Rivers Heritage Trail, 0.4 miles east of South 4th Street, on the left when traveling east.

141 ► Pennsylvania, Allegheny County, Pittsburgh, South Side Flats — Pittsburgh Glass — Three Rivers Heritage Trail —

On Three Rivers Heritage Trail, 0.4 miles east of South 4th Street, on the left when traveling east.

142 ► Pennsylvania, Allegheny County, Pittsburgh, South Side Flats — Rivers of Steel —

On Three Rivers Heritage Trail, 0.2 miles west of Hot Metal Bridge, on the right when traveling west.

143 ► Pennsylvania, Allegheny County, Pittsburgh, South Side Flats — Shaping Steel —

On Three Rivers Heritage Trail, 0.3 miles west of Hot Metal Bridge, on the right when traveling west.

144 ► Pennsylvania, Allegheny County, Pittsburgh, South Side Flats — The MonCon Railroad — Materials on the Move — Rivers of Steel National Heritage Area —

Near Three Rivers Heritage Trail.

145 ► Pennsylvania, Allegheny County, Pittsburgh, South Side Flats — The Workers — 2012 —

Near Three Rivers Heritage Trail.

146 ► Pennsylvania, Allegheny County, Pittsburgh, Squirrel Hill North — Station WQED —

On Fifth Avenue west of Devonshire Street, on the right when traveling east.

147 ► Pennsylvania, Allegheny County, Pittsburgh, Squirrel Hill South — Frick Family —

Near Beechwood Boulevard, 0.1 miles east of Shaw Avenue, on the right when traveling north.

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148 ► Pennsylvania, Allegheny County, Pittsburgh, Squirrel Hill South — George Westinghouse Memorial — 1846 - 1914 —

On West Circuit Road just south of Schenley Drive, on the right when traveling north.

149 ► Pennsylvania, Allegheny County, Pittsburgh, Squirrel Hill South — History / Restoration — Westinghouse Memorial —

On West Circuit Road just south of Schenley Drive, on the right when traveling north.

150 ► Pennsylvania, Allegheny County, Pittsburgh, Strip District — Birthplace of the Aluminum Industry —

151 ► Pennsylvania, Allegheny County, Pittsburgh, Strip District — Charles Martin Hall — (1863-1914) —

On Smallman Street at 32nd Street, on the right when traveling west on Smallman Street.

152 ► Pennsylvania, Allegheny County, Pittsburgh, Strip District — GNC — Live Well —

On Smallman Street east of 19th Street, on the right when traveling east.

153 ► Pennsylvania, Allegheny County, Pittsburgh, Strip District — Westinghouse Railroad Air Brake —

On Liberty Avenue at 25th Street, on the right when traveling west on Liberty Avenue.

154 ► Pennsylvania, Allegheny County, Pittsburgh, Technology Center — Hazelwood: A Rivertown Rich in History —

Near Hazelwood Trail at Hot Metal Bridge.

155 ► Pennsylvania, Allegheny County, Pittsburgh, Troy Hill — 31st Street Bridge —

Near Three Rivers Heritage Trail at 31st Street Bridge.

156 ► Pennsylvania, Allegheny County, Pittsburgh, Troy Hill — Henry J. Heinz — (1844-1919) —

On 16th Street at Progress Street, on the right when traveling north on 16th Street.

157 ► Pennsylvania, Allegheny County, Pittsburgh, Troy Hill — Herr's Island —

Near Three Rivers Heritage Trail.

158 ► Pennsylvania, Allegheny County, Pittsburgh, Troy Hill — The Thomas Carlin's Sons Foundry —

Near River Avenue, 0.2 miles west of 31st Street Bridge.

159 ► Pennsylvania, Allegheny County, Pittsburgh, Troy Hill — Troy Hill Incline — Historic Site —

On Lowrie Street at Froman Street, on the right when traveling east on Lowrie Street.

160 ► Pennsylvania, Allegheny County, Pittsburgh, Uptown — Black Diamonds — Three Rivers Heritage Trail —

On Three Rivers Heritage Trail, 0.8 miles east of Grant Street, on the left when traveling east.

161 ► Pennsylvania, Allegheny County, Pittsburgh, Uptown — Coal Transportation — Three Rivers Heritage Trail —

On Three Rivers Heritage Trail, 0.8 miles east of Grant Street, on the left when traveling east.

162 ► Pennsylvania, Allegheny County, Pittsburgh, Uptown — Merchants Savings & Trust Company — 1902-1983 —

163 ► Pennsylvania, Allegheny County, Pittsburgh, Uptown — Ormsby River Farms — Three Rivers Heritage Trail —

On Three Rivers Heritage Trail, 0.8 miles east of Grant Street, on the left when traveling east.

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164 ► Pennsylvania, Allegheny County, South Park Township, Broughton — 1926 Pittsburgh Terminal Coal Corporation Mine No. 4 Explosion —

On Broughton Road east of Brownsville Road, on the right when traveling west.

165 ► Pennsylvania, Allegheny County, Springdale — Carnegie Hero Fund Commission —

On Pittsburgh Street at Washington Street, on the right when traveling east on Pittsburgh Street.

166 ► Pennsylvania, Allegheny County, Stowe Township, McKees Rocks Bottoms — 1909 McKee's Rocks Strike —

On George Street at Nichol Avenue, on the right when traveling west on George Street.

167 ► Pennsylvania, Allegheny County, Stowe Township, McKees Rocks Bottoms — Presston —

On Ohio Street at Center Street, on the right when traveling north on Ohio Street.

168 ► Pennsylvania, Allegheny County, Tarentum — Orr's Block House —

Near East 1st Street.

169 ► Pennsylvania, Allegheny County, Turtle Creek — Radio Station KDKA —

On Braddock Avenue north of Electric Avenue, on the right when traveling north.

170 ► Pennsylvania, Allegheny County, West Homestead — Steelmaking Capital of the World — Homestead Steel Works —

Near West Bridge Street, 0.1 miles West Waterfront Drive.

171 ► Pennsylvania, Allegheny County, Wexford, Marshall Township — Elias Fry Barn —

Near Antler Point Drive, 0.2 miles south of Knob Road.

172 ► Pennsylvania, Allegheny County, Wilmerding — Great War Memorial —

On Station Street at Wall Avenue/Commerce Street, on the left when traveling west on Station Street.

173 ► Pennsylvania, Armstrong County, Brady's Bend — Brady's Bend Works —

On Pennsylvania Route 68, 0 miles west of Queenstown Road, on the right when traveling east.

174 ► Pennsylvania, Armstrong County, Brick Church — Cochran Mills Bridge —

On Garretts Run Rd. (Pennsylvania Route SR 2025) 2 miles south of Brick Church Rd. (Pennsylvania Route 2005), on the right when traveling south.

175 ► Pennsylvania, Armstrong County, Ford City — Pittsburgh Plate Glass Ford City Works —

On Third Avenue near 9th Street, on the right when traveling west.

176 ► Pennsylvania, Armstrong County, Kittanning — Armstrong County —

Near Market Street.

177 ► Pennsylvania, Armstrong County, Leechburg — D. Leech & Company / Western Transportation Company —

On River Avenue at River Avenue, on the right when traveling east on River Avenue.

178 ► Pennsylvania, Armstrong County, Leechburg — The Siberian Iron Works —

179 ► Pennsylvania, Armstrong County, Parker — Parker, Pennsylvania —

On North River Avenue (Pennsylvania Route 268) 0.1 miles south of Bluff Road, on the right when traveling south.

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180 ► Pennsylvania, Beaver County, Aliquippa — Aliquippa Works —

Near Constitution Boulevard offramp (Pennsylvania Route 51) at Station Street.

181 ► Pennsylvania, Beaver County, Aliquippa — NLRB v. Jones & Laughlin Supreme Court Ruling —

On Station Street east of Constitution Boulevard, on the left when traveling east.

182 ► Pennsylvania, Beaver County, Ambridge — American Bridge Company —

On 8th Street (Pennsylvania Route 989) at Ohio River Boulevard (Pennsylvania Route 65), on the right when traveling east on 8th Street.

183 ► Pennsylvania, Beaver County, Ambridge — Economy Hotel —

On Merchant Street at 14th Street, on the right when traveling south on Merchant Street.

184 ► Pennsylvania, Beaver County, Ambridge — The Harmonist Wool Block —

On Church Street south of 13th Street, on the right when traveling north.

185 ► Pennsylvania, Beaver County, Beaver — A New Era Begins 1986-Present —

On East End Avenue, on the right when traveling north.

186 ► Pennsylvania, Beaver County, Beaver — African Americans —

On East End Avenue just south of 3rd Street (Pennsylvania Route 68), on the right when traveling north.

187 ► Pennsylvania, Beaver County, Beaver — Beaver County Is Born 1800-1814 —

On East End Avenue, on the right when traveling north.

188 ► Pennsylvania, Beaver County, Beaver — Big Industry Brings Progress 1901-1917 —

On East End Avenue, on the right when traveling north.

189 ► Pennsylvania, Beaver County, Beaver — County Growth Continues 1881-1900 —

On East End Avenue, on the right when traveling north.

190 ► Pennsylvania, Beaver County, Beaver — Early Industry And Development 1815-1860 —

On East End Avenue, on the right when traveling north.

191 ► Pennsylvania, Beaver County, Beaver — Growth And Decline 1946-1985 —

On East End Avenue, on the right when traveling north.

192 ► Pennsylvania, Beaver County, Beaver — Immigration and Migration Patterns —

On East End Avenue, on the right when traveling north.

193 ► Pennsylvania, Beaver County, Beaver — Industry Flourishes 1861-1880 —

On East End Avenue, on the right when traveling north.

194 ► Pennsylvania, Beaver County, Beaver — King Beaver's Town —

On 3rd Street (Pennsylvania Route 68) at Wilson Avenue, on the right when traveling west on 3rd Street.

195 ► Pennsylvania, Beaver County, Beaver — Labor Movement and Wagner Act —

On East End Avenue, on the right when traveling north.

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196 ► Pennsylvania, Beaver County, Beaver — Women in Beaver County —

On East End Avenue just south of 3rd Street (Pennsylvania Route 68), on the left when traveling south.

197 ► Pennsylvania, Beaver County, Beaver — World War I to World War II 1918-1945 —

On East End Avenue, on the right when traveling north.

198 ► Pennsylvania, Beaver County, Beaver Falls — Chinese Workers in Beaver Falls —

On 7th Avenue (Pennsylvania Route 18) at 3rd Street, on the right when traveling north on 7th Avenue.

199 ► Pennsylvania, Beaver County, Beaver Falls — Ingram-Richardson Manufacturing Company —

On 31st Street at 24th Street, on the left when traveling east on 31st Street.

200 ► Pennsylvania, Beaver County, Beaver Falls — Union Drawn Steel —

On 7th Avenue (Pennsylvania Route 18) at 3rd Street, on the right when traveling north on 7th Avenue.

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