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The Black Canyon of the Gunnison's unique and spectacular landscape was formed slowly by the action
of water and rock scouring down through hard Proterozoic crystalline rock. No other canyon in North
America combines the narrow opening, sheer walls, and startling depths offered by the Black Canyon
of the Gunnison. Desginations
March 2, 1933 - National Monument
October 21, 1999 - National Park
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