The photo below contains GPS co-ordinates to a free campsite near Carlsbad Caverns. Check out the location in the image using the iOS Photo Investigator App.
New Mexico is a beautiful and varied state. This campsite allows you to see 3 amazingly different locations over two days. To the East is Carlsbad Caverns, one of the most engrossing caves in the world. To the West lies White Sands National Monument, a unique and enormous, blindingly-white patch of gypsum dunes (rent a sled there!).
This is a campsite in Tonto National Forest, off the I-17, between Flagstaff and Phoenix. The entry is a bumpy forest road, with other sites in the vicinity. If you go further into the forest, I'm sure there are much better areas, but this made for a quick free stop on my way through Arizona. An elk ambled right by my site just as I was getting into the tent, which definitely got my blood pumping!
Centered between I-10 and I-8 in Arizona, North of Yuma, the KOFA National Wildlife Refuge is a great spot to get away and camp for free in wide open spaces. The name comes from the King of Arizona mine, as this refuge was the site of many gold mines. You can see some of the old mines here, at a museum, or various closed off mine shafts throughout.
John McAfee was in for a surprise when he chose to boast his freedom from chasing authorities via a popular blog reporter. Not only was the photo of terrible quality and with an object blocking part of the scene, but also the unassuming reporter posted a photo which included the exact GPS location of McAfee, and within a short time he was in custody. To view the GPS metadata, save the photo to your iPhone or iPad, and open the photo from within the Photo Investigator app.