Used to ride all the time back when I did rock crawling.
I don't recall exactly where it was, but it faced the east: There is an old anti-aircraft defense site up there somewhere, mostly all that's left is some concrete foundations and some parts od a building or whatever. There's also a lot of new-ish antennas there as well, putting out some power since it made the GPS receivers go nuts. Pretty interesting site; maybe somebody here knows where it is.