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Yellowstone West Thumb

editor — Thu, 30 Jun 2016 17:00:00 +0000

West Thumb history and facilities NOTE: Consult the map of West Thumb Geyser Basin on 138 for West Thumb facilities. The information and bookstore building, where the Yellowstone Association sells books and pamphlets, is housed in the former ranger station dating from 1925, now used as a warming hut in winter. ©(5) S©(4) Reached from this parking lot are the West Thumb picnic area, two hiking trails, and the West Thumb Geyser Basin boardwalks. There is no running water. The rather strange name of this spot, West Thumb, refers to the shape of this bay in Yellowstone Lake. Early explorers

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West Thumb Geyser Basin

editor — Tue, 28 Jun 2016 20:00:00 +0000

Walking toward the lake from the parking lot, stay to the right to find the Thumb Paint Pots . The paint pots were named Mud Puffs originally and perhaps more appropriately. The mud is formed by the action of sulfuric acid in the water on the rock it passes through. Historically, the pastel colors here were reported to be remarkable. Now they are duller at best and, depending on recent rainfall, vary from appearing like a muddy pond to just a dry area with a few mounds. Seismograph and Bluebell pools, on a spur to the right, differ from each

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