Photograph - Digital Capture, Watermark Not On Actual Print
Vishnu Schist, Grand Canyon National Park. This is the bottommost and oldest layer of rock exposed in the canyon, around 2 billion years old and thus close to half as old as this planet itself!
June 16th, 2012
Viewed 398 Times - Last Visitor from Beverly Hills, CA on 05/22/2015 at 5:37 PM