From the bowels of the Earth it came! The unimaginable magma from 1.8 billion years ago is now igneous Precambrian rock that lies atop the mountains and the high cliffs of the Rio Grande Gorge, the oldest exposed rock in the state. Metamorphic rock from sediments deposited at the bottom of an ancient ocean 1.7 [...]
geology
When I was a kid, places like this held amazing powers of attraction for me. They still do. The camera doesn’t do it justice, though. This arroyo is almost 20 feet deep, and I had to be careful about not falling in when I took the shot. Consider that the sagebrush is about two to [...]