The R.E. Law Crushed Stone quarry near Port Colborne, Ontario, bought its oldest operating F-Class vibrating screen on March 20, 1943. The vibrating screen shipped two months later. The machine was then sold to Hard Rock Paving Co. along with the quarry in 1977. The Waterford Group bought the operation in 2008 and uses the F-Class at a quarry in Uxbridge, Ontario. Its operators say it still works flawlessly.

USGS statistical overview of crushed stone production in 2015.

USGS statistical overview of crushed stone production in 2015.

USGS overview of the production of crushed stone in 2013 along with information about foreign trade, transportation, recycling, and prices throughout the industry. Includes an look forward at the industry through 2013.