The owner of the San Rafael Rock Quarry has applied for a 20-year extension to its agreement with Marin County, which would give the company the green light to continue mining on the site until 2044.

The Dutra Group, whose San Rafael Rock Quarry is being depleted, is negotiating to buy the Bodega property from a longtime ranching family. The group has already conducted a geotechnical ...

Hanson Aggregates, the San Diego cement giant owned by a giant ... Turning the old Carroll Canyon rock quarry into flashy new developments turns out to require lots of costly lobbying juice ...

Jan. 22—The sale of the mineral rights of Marin's largest quarries, the San Rafael Rock Quarry, is a milestone in its long history, but not one that should change its recent history of operating ...

SAN DIEGO (CBS 8) - Residents in Tierrasanta are not happy with their neighbor Rock Quarry. Explosions by the company not only shakes windows, but also sends rocks and debris raining down on ...

There is a severe shortage of aggregates in the San Diego region (see attached). The rock from the quarry is used to make concrete and asphalt, and a division of Superior Ready Mix, SRM ...

The 414-acre quarry was proposed in 2005 and would have produced about 200 million tons of concrete over several decades. More than two-thirds of the rock mined would have supplied San Diego ...

A giant rock quarry proposed in the hills above Temecula ... which looms over Interstate 15 on a peak on the San Diego County border, would yield about 270 million tons of granite over 75 years ...