Part of the Soiland family since 1973, Stony Point Rock Quarry in Cotati produces high-quality basalt aggregate and recycled construction materials for projects across Sonoma County and the North Bay. The quarry supplies rock, sand, aggregate base, rip rap, and pathway materials used in infrastructure, construction, and landscaping projects. The site also supports Soiland Materials’ recycling and sustainability efforts by processing rubble materials into reusable aggregate products and helping power operations with solar energy.