According to our records, this business is located at Boyce Memorial Dr. in Ottawa (in La Salle County), Illinois 61350, the location GPS coordinates are: 41.3466016 (latitude), -88.8649484 (longitude). US Silica Co is categorized under Paving Mixtures (SIC code 5032). Known organization plant mgr is James Baccari. Current estimates show that the unit has a sales volume of $62,400,000 and staff of approximately 130 people. You can contact the company by phone at (815) 434-7300; the following fax number is also provided: (815) 434-7536. Business website can be accessed at www.ussilica.com.