We left Crater Lake and headed north, stopping to see a huge obsidian "mountain."

To really see the magnitude of the obsidian flow, one needs to climb MANY stairs and then there's about a quarter-mile loop trail around the top.

It rained on us a bit as we climbed. Take a close-up look at the shiny bits at lower right.

A lot of the trail was snow-covered, but we completed it. Here I'm holding a piece of contraband obsidian -- it's forbidden to remove any!

Dad by an obsidian "wall."

The edges of the rocks are extremely sharp and one can see why the Native Americans liked to use obsidian for arrow tips. Click again and read about it.

From the top of the obsidian flow, we could see one of the TWO lakes in this volcanic crater.

If you want more information about how obsidian forms from an eruption, click again and read -- I found it interesting.

Here you can see obsidian in the foreground, then snow, rocks, a lava edge, trees and mountains.

One by-product of all the rain we experienced was getting to see some beautiful rainbows. Here's one end of a double one.

And here's the other end, but only the main rainbow shows on this end.

The day after the lava excursion, we rafted the Deschutes River all day--no photos. Then we visited the Bruneau Sand Dunes in Idaho!