National preserve in northwestern Wyoming, southern Montana, and eastern Idaho, U.S. The oldest national park in the U.S. (and in the world), it was established by the U.S. Congress in 1872; it covers 3,468 sq mi (8,983 sq km). The Gallatin, Absaroka, and Teton mountain ranges extend into it. Yellowstone has unusual geologic features, including fossil forests and eroded basaltic lava flows. It also has 10,000 hot springs, which erupt as steam vents, fumaroles, and geysers. Old Faithful, the park's most famous geyser, erupts every 33 to 120 minutes. There are many lakes and rivers, including Yellowstone Lake, Shoshone Lake, the Snake River, and the Yellowstone River. In 1988 an extensive series of forest fires temporarily laid waste to large areas of the park.
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The album tracks consist a compilation of both older tracks from Davis and (relatively) newer tracks (Earthrise and Return to the Earth--the former of which had appeared in a 1987 American Gramaphone 'sampler'), and fully orchestrated pieces from notable classical composers such as Claude Debussy, Antonio Vivaldi, Ottorino Respighi, and Ferde Grofé.