Portland Brownstone Quarries

Portland Brownstone Quarries
LocationBrownstone Ave. and Silver St., Portland, Connecticut
Coordinates41°34′32″N 72°38′36″W / 41.57556°N 72.64333°W / 41.57556; -72.64333
NRHP reference No.00000703
Significant dates
Added to NRHPMay 16, 2000
Designated NHLMay 16, 2000

The Portland Brownstone Quarries are a set of historic quarries in Portland, Connecticut. The brownstone mined from these quarries was an important source for construction in the latter half of the 19th century. The stone from these quarries was used in a number of landmark buildings in Chicago, Boston, New York City, Philadelphia, Baltimore, Washington, D.C., New Haven, Connecticut, and Hartford. The site was listed as a National Historic Landmark, which also placed it on the National Register of Historic Places, on May 16, 2000.