Mount Union borough
Welcome to Historic Mount Union
Welcome to Historic Mount Union! Every day this month we will share one photograph from the town's past, with the story behind it.
We start from the air: Bricktown USA before 1960. At its peak Mount Union was the largest producer of refractory silica brick in the world, three plants running at once: Harbison-Walker, General Refractories, and North American Refractories. The brick era ran from 1899 to about 1972.
Follow the page so you don't miss a day, and tag a friend who grew up here.
📷 Photo: huntingdoncountyhistory.com
Sources
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Checked 2026-07-02 · Historic Mount Union collection