Thropp Company Ashcom Quarry, South of U.S. Route 30 off State Route 1004, Ashcom, Bedford County, PA
Summary
Significance: Developed in the early 1900s in connection with local ironmaker Joseph E. Thropp, limestone from this quarry was used as flux in the blast furnace for the production of pig iron. Many such quarries in southwestern Pennsylvania were developed in the nineteenth and twentieth century in connection with the region's iron and steel industry. During construction of the Pennsylvania Turnpike in the late 1930s and early 1940s, the New Enterprise Lime and Stone Company constructed a cement mill and concrete batch plant at the quarry site. It continues in operation though on a much reduced scale.
Survey number: HAER PA-346
Building/structure dates: ca. 1890 Initial Construction
Building/structure dates: 1903 Subsequent Work
Building/structure dates: 1934 Subsequent Work
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