Family Owned Canyon Rock has been a leader in the industry in supplying quality aggregate and concrete since the 1970's. The Trappe family, originally from Freestone, CA owned a dairy ranch and would purchase materials from Canyon Rock for their roads. In 1972, Canyon Rock was for sale and purchased by Adolph Trappe, and has been family owned and operated ever since. Adolph's son, Wendel and his wife Gwen have kept Canyon Rock as a family operated business over the years and their three children are now a vital part of the company as well.