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Unknown Mountains: Return to the Henry Mountains

Laccoliths in the Desert | Friday – Saturday, June 21-22, 2024

The Henry Mountains are a laccolithic mountain range that stand high above a sea of sandstone cut by deep canyons on the Colorado Plateau and were one of the last-surveyed and last-named mountain ranges in the contiguous United States. In 1869 John Wesley Powell made note of the range during his initial voyage down the Colorado River and called them the Unknown Mountains at the time. Then in 1871 he returned to the area on his second trip down the Colorado and renamed them to the Henry Mountains after Joseph Henry, a close friend who was secretary of the Smithsonian Institution. Last year I was planning to head back up into the Henry Mountains after Jared and I had spent a nice weekend there in 2022, but other trips came up and I never made it. This year I was determined to get back early in the summer to hike a couple new peaks and highpoints and chose to go this weekend. I left from work on Friday afternoon and made my way to Hanksville, and even though there were a lot of storms throughout the area this afternoon, some which caused flash flooding around Moab and the San Juan River, I managed to miss them all- aside from the wind. It seems that it’s frequently very windy out when I stop in Hanksville, and today was no exception!

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Laccolith Tour | Henry Mountains

Saturday & Sunday, June 12-13, 2010

This last weekend Amanda and I decided to head for the Henry Mountains. I have skirted around them many times in the past, but for some reason I had never made the time to stop and check them out. This was my weekend to correct that little problem 🙂 Last week was very hot and sunny around here, so I thought the weather would be perfect when I started planning the trip. Unfortunately, there was a cold front that came through and screwed up all that nice weather while we were out exploring. We managed to still have a great time, even with the cooler temperatures, rain and snow.

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