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Big Morongo Canyon Preserve
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Nestled among the Little San Bernardino Mountains, the desert oasis at Big Morongo Canyon is one of the ten largest cottonwood and willow riparian (stream) habitats in California. The upstream end of the canyon lies in the Mojave Desert, while its downstream portion opens into the Colorado Desert. The Morongo fault running through the canyon causes water draining from the surrounding mountains to form Big Morongo Creek and the marsh habitat. At 31,000 acres with elevations ranging from 600 feet on the canyon floor to 3,000 feet at the top of the ridge, this diverse landscape has been an important part of the Morongo Basin’s natural and cultural history for almost two billion years.

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