Mount Pleasant Township is a township in Westmoreland County, Pennsylvania, United States. As of the 2020 census, the township population was 10,119. Mount Pleasant Township should not be confused wit
Sewickley Manor (1852) National Register of Historic Places
Outcrop of the Casselman Formation, viewed at milepost 84.2 on the Pennsylvania Turnpike
Mammoth Mine disaster
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The Mammoth Mine disaster or Frick Mine explosion occurred on January 27, 1891 just after 9:00 AM in the Mammoth No. 1 mine in Mount Pleasant Township, Westmoreland County, Pennsylvania. Newspapers re
Mount Pleasant Township, Westmoreland County, Pennsylvania
…southwest corner of the township in 1801. It was demolished in 1833, but the area is still called "Iron Bridge." In 1891 the township was the site of the Mammoth mine disaster, in which over 100 miners died. According to the United States Census Bureau, the township has a total area of 55.5 square miles (143.7 km2), of which…
Mine entrance, now blocked
The site today. Left: memorial to miners killed. Right: entrance to mine, now blocked.
Mine entrance closeup. Mine cart at right.
Memorial marker.