Boundary Oak is east of Walnut Creek off I-680 at Ygnacio Road adjoining the Lime Ridge Preserve without homes or development in the foothills of Mount Diablo.

The course is challenging with tree lined fairways throughout, water hazards on 1/3 of the holes, sand bunkers positioned alongside the fairway landing areas and greens, and varying degrees of elevation change. It's fairly long from the tips at 7,100 yards, 74.2/133, course/slope ratings with four shorter tee boxes, originally designed by Robert Muir Graves in 1969 but redesigned by Bob Boldt.