Excerpt from The Geologic Story of Yellowstone National ParkYellowstone national park area, showing rivers, lakes, landforms, roads, towns, settlements, and major geyser basins (stippled). The Park embraces square miles acres), and its boundaries traverse a distance of nearly 300 miles. Yellow stone Lake, with an irregular shoreline of 110 miles and a surface area of 137 square miles, is one of the largest natural mountain lakes in the United ...
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