Resource Design has unique experience in mine permitting, design and operation, as well as federal, state and local agency regulation. We are involved in all phases of mineral development, from exploration and feasibility to design, permitting, construction, operation, and closure. Our experience spans the entire range of California mines in both mineral commodity and mine size. We have supported the production of aggregates (crushed stone, sand, and gravel), precious metals, clay, cinder, limestone (cement, industrial and pharmaceutical grade), and a variety of other specialized industrial materials at over 300 California mines.