Our rock quarry (www.dwyerriprap.ca) has thousands if not more of naturally formed rock available to choose from in Class 1, 2 and 3. The rock is much stronger than that of limestone and since it is naturally formed, not blasted it does not have the possibility of fractures. This guarantees the rock consistency and will meet engineering requirements. In addition the rock has been tested and meets the State of California road building requirements. We are flexible with our product and can offer it at the quarry, deliver it and even place.