The Seneca Ruby Mine: A Ruby-Tinted Pearl in the Heart of Maryland

Tucked away in the picture-perfect town of Seneca, nestled within Montgomery County, Maryland, you'll find a historic treasure – the Seneca Ruby Mine. This site was once celebrated for providing stones that adorned buildings across Washington, D.C, yet it's the deep-set ruby hue that gives Maryland its distinctive charm. The quarry comes under the Seneca Historic District and supplies the stones for Seneca Creek State Park. It's the iron oxide that seeps into the sandstone and gives it the distinctive, vivid red known as Seneca ruby.

Now standing tall with sycamores and tulip poplars, this quarry sits peacefully by the Chesapeake and Ohio Canal on the north bank of the Potomac River. Its highly durable, easy-to-cut, and vibrant red stone made it a highly sought-after find. The remnants of the quarry and the stonecutting mill are hidden amongst wild roses and tulip trees, forming part of the Chesapeake and Ohio Canal National Historical Park.

Sources: Wikipedia, OpenStreetMap, Wikidata, Wikimedia Commons