What the hell makes rock look like this? By good fortune i found out. They are traces of 1,000,000,000 year old stromatolites*. Current altitude approx 6500 feet.
*Colonies of bacteria that live in shallow seas. Still exist today, they look like white mounds a couple feet across.Read more
August 29, 2017 in the United States ⋅ ☀️ 27 °C