This is also interesting....
Roles both religious and secular have been ascribed to each cross. Each has on occasion been used by members of the public for Christian religious purposes.10 Each cross also has been dedicated as a memorial to an individual or individuals who have died. 11 In addition, the cross on Mt. Helix *1424 serves pilots as a navigational aid, and the cross on Mt. Soledad assists surveyors and seismologists.12
While the two crosses clearly are alike in many respects, they also are distinguishable. In particular, it should be noted that whereas the property on which the Mt. Soledad Latin cross stands has been public for as long as the cross has stood there, the property on which the Mt. Helix Latin cross stands did not become public until after the cross had been erected on it. 13