Located in the foothills of the San Bernardino Mountains above its namesake city is a rather interesting natural formation. The Arrowhead Landmark.
The face of the arrowhead consists of light quartz, which supports a growth of short white sage. The ligher texture of the sage is in sharp contrast to the surrounding chaparral and greasewood. Indians who inhabited the San Bernardino Valley believed that the arrowhead pointed the way to the hot mineral springs below, with healing qualities, and thus considered it holy ground. The pioneers who settle the valley also founded a distinct symbol.
It is a California state landmark and a plaque marks the significance of it on the corner of Waterman (SR-18) and 44th Streets, in Wildwood Park, San Bernardino.
Sources
http://www.donaldlaird.com/landmarks/index.html#Los%20Angeles