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Grand Canyon National Park
Grand Canyon National Park is a powerful and inspiring landscape that overwhelms our senses through its immense size; 277 river miles long, up to 18 miles wide, and a mile deep. Along the south rim, nestled among the ponderosa and pinon pine are small clusters of Gambel oak, Quercus gambelii, the focal point of our new phenological monitoring effort.
Grand Canyon National Park 86023 Grand Canyon , AZ