In 1906, Devil’s Tower was proclaimed the first national monument by President Roosevelt. The tower is a crazy rock formation. From the pictures it doesn’t really look that big, but the top of the tower is about the size of a football field. Though it looks like an old volcano it isn’t.The tower is actually an igneous intrusion (Science lesson: Magma pooled under sedimentary rock, it eventually hardened and then the sedimentary rock–being softer, eroded over time and exposed the igneous rock formation of the tower. Munson would be so proud of me remembering all of that from Geography!) Now this I had to use google for: “Devil’s Tower is made of Phonolite porphyry, it is similar in composition to granite but lacks quartz. Phonolite refers to the ringing of the rock when a small slab is struck, and its ability to reflect sound. Porphyry refers to its texture, large crystals of feldspar embedded in a mass of smaller crystals.”
Sad to say that the tower was pretty amazing, but this was probably one of the worst parts of the trip. We drove half way across the country so that Jon could climb at the tower and I could tour the park. But this was the only day of the whole trip that it wasn’t scorching hot. It RAINED so hard that there was no climbing to be had by anyone for the day we paid for, or the day after that. SO HORRIBLE! So, now Jon has a credit in Wyoming for the next time we happen to feel like driving over 2000km and back just for the weekend.
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