NOCSIA toured the former Haydite Mine location in Independence, Ohio on March 27, 2021. It was a long standing industrial site which began as a brick making concern and ran for 100 years as a haydite mine. They also explored remnants of an early sandstone quarry nearby along the new Hemlock Creek Trail.
Interpretive sign for the Haydite Mine along the Hemlock Creek Trail in the Cuyahoga Valley.