Homeland security is probably watching the area. It's a major corridor for the import of power for California. Three DC power lines into the LA basin provide much of the power to the area. It's one of a list of likely targets that are the goverment's watchlist.

Since 2001, survelliance methods have become more sophisticated, it's likely overflights in the area have picked up unusual activity. You wouldn't notice them as they fly 20,000 feet or higher and rely on advanced optic and infrared sensors to monitor the area.

Wikipedia actually has a page on the line, which is called Path 27, or the Intermountain DC power transmission corridor.

A moderator out of Pennsylvania killed the thread before two hours had elapsed.

Legoboyjj, Rain or Shine, and I hit the trail today to tackle this series. We had an absolute blast exploring the area and finding these caches. Even though we were running most of the day, I still took time to enjoy the views, look closer at the variety of blooming plants, and see the desert in a way that I’ve never had the opportunity to before. All of that plus the fact that we found 695 caches today make this a caching adventure that I’ll never forget. A huge thanks to the owner of these caches for placing them – It’s sad to see them get archived.