by Kerry Clines | Contributing Editor
PLANT PROFILE
12
AGGREGATES MANAGER / November 2016
When the contractor poured the concrete for the primary, he
stamped the quarry's name and the date the structure was
built into the side of the structure.
Mining
in the
Valley Valley
Mission Valley Rock embraces new drone technology to
measure stockpiles and obtain 3D renderings of its pit.
One dozer and one excavator run the entire pit at Mission Valley
Rock, in Sunol, Calif., produce 1 million tons of product per year.
