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All Historical Markers in Donora

These are historical markers that have been installed by the Pennsylvania Historical & Museum Commission (PHMC). For more information on these markers, see the PHMC Historical Marker search page .

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1948 Donora Smog, The

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Major federal clean air laws became a legacy of this environmental disaster that focused national attention on air pollution. In late October of 1948, a heavy fog blanketed this valley, and as the days passed, the fog became a thick, acrid smog that left about 20 people dead and thousands ill. Not until October 31 did the Donora Zinc Works Read more...
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Cement City

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Located four blocks to the west. Built 1916-17 as housing for employees at American Steel & Wire’s Donora plant. A community of 100 units in 80 Prairie-style buildings, noted for the innovative use of poured-in-place concrete construction. One of several concrete communities built in the U.S. during this era, Cement City survived to house successive generations of families. A National Read more...