Sabbath morning we went to church in Powell. It was a very small group, maybe eight of us altogether. We had a nice lesson study, but because the pastor was away, there was no church or fellowship lunch that week. So after Sabbath school we continued on our way.
One stretch of highway was an unusual blood-red color. It doesn’t show perfectly in the photo below (I took it while driving), but you get the general idea.

It was a very interesting road in other respects, too. It had a very long and somewhat steep incline, and we drove a long time before reaching the top. It went in and out of open range, so I had to keep an eye open for cattle. (We did see some, but not on the road, thankfully.) On the other side, it descended through many layers of rock labeled according to geologic time tables (so many billion years old, etc.); there seemed to be an unusually wide gamut of rock layers exposed.
In western Wyoming we came to Devil’s Tower, another natural site that I’ve always wanted to see. I wish we could have seen it in the early morning or at sunset, but our driving schedule did not permit that. It was very impressive, and I was awed at the sheer size of it.
The most easily recognized profile (colorized a bit in Photoshop):

A closer view from a path near the base; the photo suffers from some perspective distortion:

Scenery within the Devil’s Tower park:

According to information inside the visitor’s center at Devil’s Tower, no one is really sure how the tower formed. But apparently as the rock cooled, it fractured into tall columns, each with a somewhat crystalline shape (mostly hexagonal, but some have 5 or 7 sides). Over time pieces of these columns have collapsed, and you can see fragments of all sizes strewn around the base of the tower and out into the surrounding woods for some distance.
Below is a close-up of Devil’s Tower. You can see that some columns are missing their tops, others their bases. Can you spot the people in the photo at left? Even standing there in person, I had no idea of the scale of the formation until I saw the climbers and took these photos. The red rectangle is the approximate area shown in the second photo; the two big red circles are magnifications of the smaller red circles.

The rock behind me appears to be part of one of the columns that has fallen (the crystalline shape is not as clear from the ground):

We also enjoyed visiting a large colony of prairie dogs there.

In the evening we came to the Black Hills in South Dakota. We might have been tempted to stop, but we were tired, and the Black Hills are one of the places I remember well from childhood vacations, so I was not so eager to see it again. I did want to visit the Badlands, but by the time we reached them, it was already dark, so we just drove on.
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