Yellowstone National Park - Grand Prismatic Spring Postcard
UNESCO WHS Serie - Yellowstone National Park - Midway Gayser Basin - Grand Prismatic Spring - 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 Grand Prismatic Spring in the Midway Geyser Basin is the largest hot spring in the USA and the third largest in the world. The bright, vivid colors in the spring are the result of microbial mats around the edges of the mineral-rich water. The deep blue color of the water in the center of the pool results from the intrinsic blue color of water. The spring discharges an estimated 560 US gallons (2'100 L) of 160°F (70°C) water per minute. World Heritage Sites in the USA - Name: Yellowstone National Park Country: United States of America Location: Wyoming, Montana, Idaho Site: Midway Gayser Basin - Grand Prismatic Spring 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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