Parks and Recreation Piestewa Peak/Dreamy Draw – Phoenix, Arizona

While the actual rocks of the Phoenix Mountains (including the areas around Piestewa Peak and North Mountain) are very old, the mountain shapes are, geologically speaking, quite young. They were formed about 14 million years ago as the crust of the earth was gradually stretched from northeast to southwest, elevating mountain ranges and down …

https://www.phoenix.gov/parks/trails/locations/piestewa-peak