A research project downloaded a bunch of pictures of cats, and put the photos on a map by using the GPS metadata.
Here's another gem of a free campsite, near Yellowstone's Northwest entrance. If you couldn't get a spot in one of the many first-come-first-serve campsites at Yellowstone, and you are Buffalo watching up in the Lamar Valley, then this spot is a great option for a restful night's sleep with the lullaby of the rushing river. A scenic slender peak watches over the area, and you'll not be surrounded by other campers as in the park.
Jedediah Smith State Park is one of the most mysterious and amazing national parks. The tallest trees in the world live here. Check out the Stout Grove for some of the largest, although do some googling about the hidden Grove of the Ancients to embark on a misguided voyage into the heart of the park, in search of some enormous trees.
Unlike the other images on this blog, this image below does not contain metadata. However, it does give information about free campsites around San Francisco. Check it out!
Bastendorf Beach near Coos Bay, Oregon is public land, through the Bureau of Land Managment. Camping here is free on a wide open beach. Bathrooms are nearby, as well as parking. To view the GPS metadata of the image below, and get directions to the site, use the Photo Investigator iOS App.