Feldspar Grinding Mill, Erwin, Unicoi County, Tennessee.
Date:
1921
Negative:
Collection:
Library Collection
Historical Note:
In 1949, Feldspar Milling Company entered into a joint venture with North Carolina Feldspar of Erwin, TN, to form Feldspar Flotation Corporation and build one of the first successful flotation feldspar plants at Spruce Pine, NC.