Yellowstone National Park - Castle Geyser Postcard
UNESCO WHS Serie - Yellowstone National Park - Upper Geyser Basin - Castle Geyser - Yellowstone National Park is a protected area showcasing significant geological phenomena and processes. It is also a unique manifestation of geothermal forces, natural beauty, and wild ecosystems where rare and endangered species thrive. It also has the world's largest concentration of geysers (more than 300 geyers). The Castle Geyser is a cone geyser located in the Upper Geyser Basin. It is noted for the particularly large geyserite sinter deposits, which form its cone. These deposits have been likened in appearance to a castle. The Geyser has a 10 to 12 hour eruption cycle. It erupts hot water for about 20 minutes in a vertical column that reaches a height of 90 ft (27 m) before changing to a noisy steam phase that issues for 30 to 40 minutes. World Heritage Sites in the USA - Name: Yellowstone National Park Country: United States of America Location: Wyoming, Montana, Idaho Site: Upper Geyser Basin - Castle Geyser Inscription: 1978 Category: Natural (vii)(viii)(ix)(x) Unesco Ref: 28 Special Feature: The card has a QR-Code on the backside to navigate for more Informationas about the site.
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