Bumpass Hell , an active hydrothermal area. The scenery was stunning, and seemed to change with each twist in the trail.
Kendall Bumpass who hoped to make his fortune here, but instead inadvertently stepped through the thin crust of soil into the boiling mud, and lost a leg due to the injury. I took this parable to heart and adhered to the directives to stay on the path and the boardwalk.
Here's a short video to give you a feel for it:
Sierra Nevada Brewery is a extremely "green" operation, which made it an added pleasure to dine there.