Progline said:
I BELIEVE (and don't quote me on that) that it is in the vicinity of Loop Canyon/Contractor's Point.
I had a feeling that this was the case. I think the topo map shows more electronic sites there than can be accounted for by looking up all the names for that ridge. There is Loop Canyon, Contractor's Point, and Los Pinetos. The latter is called that by Caltrans and refers to a site futher west than the other two. I think there is a fourth site shown on the topos and it might be "Duck". Next time I'm down there I will try using 300 mW north of Sand Canyon or so, then try the same power near the Sylmar Pacific Intertie facility. I have this book:
http://www.nitromethane.com/arroyo_borracho/book_radio_sites.htm
The 1991 printing does not list Duck Mtn. and maybe I should get the latest edition to see if they have it listed now. This is a very good book and I wish there was one for the entire state of California with editions for Nevada, Arizona, New Mexico, and Utah, the states I travel in the most. I think every state could use such a book as I find it useful for programming not only amateur mobile rigs, but for programming scanners as well. I like to visit electronic sites when I can - I'm not sure why they hold such an interest to me.
In my career with the Forest Service I made it a point to viist every repeater site, lookout, fire station, etc., wherever a fixed radio was located, look at every piece of apparatus, and try to visit key portions and the camp of each backcountry ranger's patrol area . I also made sure I introduced myself to every employee I could, not only to form working relationships but because many of them spoke on the radio as well. When I spoke or listened to traffic I formed a mental image of the person, the engine or pickup truck the person used, the rangers camp and patrol area, base station location, and repeater site. If I could not picture these things the communication did not seem complete. Many of the repeater sites the Forest Service, BLM, and Park Service use are very remote and normally serviced by helicopter only. Reaching the site on foot was often very challenging. This was a full time on and mostly off duty occupation for a number of years after each transfer.
So many peaks, so many trails, so many roads, so many lakes, so many "blank" spots on maps, so many hobbies, and so many books to read, and only one lifetime!