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Imperial National Wildlife Refuge

Imperial National Wildlife Refuge Review

A guided tour is the best way to visit this 25,765-acre wildlife refuge, created by backwaters formed when the Imperial Dam was built. Something of an anomaly, the refuge is home both to species indigenous to marshy rivers and to creatures that inhabit the adjacent Sonoran Desert—desert tortoises, coyotes, bobcats, and bighorn sheep. Mostly, though, this is a major bird habitat. Thousands of waterfowl and shorebirds live here year-round, and migrating flocks of swallows pass through in spring and fall. During those seasons, expect to see everything from pelicans and cormorants to Canada geese, snowy egrets, and some rarer species.

Canoes can be rented at Martinez Lake Marina, 3.5 miles southeast of the refuge headquarters. It's best to visit from mid-October through May, when it's cooler and the ever-present mosquitoes are least active. Kids especially enjoy the 1.3-mile Painted Desert Nature Trail, which winds through the different levels of the Sonoran Desert. From an observation tower at the visitor center you can see the river, as well as the fields where migrating birds like to feed. You can sign up for guided walks (including evening walks when the moon is full) from November through March (call ahead).

    Contact Information

  • Address: Martinez Lake Rd., Martinez Lake, AZ 85328 | Map It
  • Phone: 928/783–3371
  • Cost: Free
  • Hours: Visitor center Apr.–Oct., weekdays 7:30–4; Nov.–Mar., weekdays 7:30–4, weekends 9–4
  • Website:
  • Location: Imperial National Wildlife Refuge
Updated: 02-25-2013

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