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Southern Arizona Travel Guide

Imperial National Wildlife Refuge

Something of an anomaly, this 25,765-acre wildlife refuge created when the Imperial Dam was built is home both to marshy-river species and to creatures that inhabit the adjacent Sonoran desert—coyotes, bobcats, desert tortoises and bighorn sheep. Mostly, though, it’s a major bird habitat, with waterfowl and shorebirds year-round, and masses of migrating flocks during spring and fall.

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