We went on a docent led hike to the Big Morongo Canyon Preserve up in the mountains to the north of the Coachella Valley. This is another area where you can see a great range of both geologic change and landscape. This hike follows another part of the North American plate faults (like the San Andreas which we visited a couple of weeks ago). Here it plays out in a different way. The two types of stone here represent stone that is 4 billion years old on the left and the "new" stone, only 133 million years old, on the right. The stone on the right was molten plasma when it worked it's way up thorugh the crack caused by the fault. It's so interesting to see how our world was shaped up close and personal like this. How clear it all seems when someone shows you what to look for. And it certainly makes you gain some perspective on the passage of time - our time here is so puny in comparison.