Black Lava Boulders Eastern California quarry produces a wide range of materials from the rubble to large boulders. Materials are shipped bulked 18 to 24 tons throughout California. Smaller orders shipped on pallets anywhere requested. Regional and nationwide shipping from one boulder to full loads. Black Lava boulders are available in a wide variety of shapes and sizes from 8 inches to 6 feet in size. Black Lava boulders have been one of the most difficult to find materials we sell, mostly because of the way black lava formations are created. Black lava bed formations are not geologically formed in a way to get material much larger than 8 inches, some day I will post an interview with a lava rock quarry operator who can explain this problem. Finding a quarry with a large range of black boulders and then hauling it to a processing location has been a huge effort. Our extensive and unique selection of individual lava boulders and quarry direct shipping ability for large orders will give your landscape or building project the perfect look you are looking for. We also offer special discounted pricing by truckload.