Here’s what I found after a week’s worth of banded lateral walks. My hips felt sore and tight for a few days I woke up sore the morning after my first day, and that was something I didn’t ...

The end result was the striped and banded rock - visible in many parts of the canyon today - called gneiss. 12 to 5 million years ago Rocks in the area, which was still being pulled apart, became ...