Lehigh Southwest Cement (formerly known as "Calaveras Cement" since 1925) serves ready mix concrete producers, concrete product manufacturers, building trades, engineers and architects across California, Oregon, Nevada and Arizona. Lehigh Southwest's commitment to producing and supplying quality products has established the company as a recognized leader in the manufacture and supply of Portland Cement. Lehigh Southwest Cement takes pride in its commitment to responsible corporate citizenship including relationships with our communities, the safety of our employees and environmental stewardship.

Lehigh Southwest Cement's products and services have helped build many major projects throughout the western United States.