Keystone Feldspar Mine, Nottingham


Location: south side of West Ridge Road in West Nottingham

This quarry was active into the 20th century.


Newspaper Clippings

None


Economic Geology of the Feldspar Deposits of the United States
by Edson S. Bastin

United States Geological Survey, 1910

A quarry operated by the Keystone Feldspar Company, of Philadelphia, is located a few hundred yards southeast of the Sparvetta quarry, probably on a continuation of the same feldspar mass. The pit is about 350 feet long, 150 feet wide, and 80 feet in maximum depth, its greatest length being from northwest to southeast.



The quarry is equipped with two derricks, a steam hoisting engine, a steam pump, and steam drills, It employs a crew of fifteen to twenty men. The material is hauled 1½ miles to Sylmar station and is all sold in the crude state.


Sparvetta Quarry