Is a Cross Permissible on a Mountain? In a Cemetery?

The cross has become a focus of political and legal discussion in the last few decades. There is the case currently before the Supreme Court about the cross in the Mojave Desert, brought by the ACLU. That same organization earlier complained about a cross in a county seal, despite the fact that the symbol (only one part of a complex seal) represents 18th-century missions that are an inherent part of the county's history.

Here is a good article from the L.A. Times discussing the issue:

The many meanings of a cross