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The Planet
Monuments at Risk

Agua Fria, Ariz.
Designated 1/11/00
Acreage: 71,000

Anderson Cottage, D.C.
Designated 7/7/00
Acreage: 2.1

Buck Island Reef, U.S. Virgin Islands
Designated 1/17/01
Acreage: 18,135

California Coastal Rocks and Islands National Monument, Calif.
Designated 1/11/00
Acreage: N/A

Canyons of the Ancients, Colo.
Designated 6/9/00
Acreage: 164,000

Carrizo Plain, Calif.
Designated 1/17/01
Acreage: 250,000

Cascade-Siskiyou, Ore.
Designated 6/9/00
Acreage: 52,000

Craters of the Moon, Idaho
Designated 11/9/00
Acreage: 715,440

Giant Sequoia, Calif.
Designated 4/15/00
Acreage: 327,769

Governor's Island, N.Y.
Designated 1/20/01
Acreage: N/A

Grand Canyon-Parashant, Ariz.
Designated 1/11/00
Acreage: 1,014,000

Grand Staircase-Escalante, Utah
Designated 9/18/96
Acreage: 1,700,000

Hanford Reach, Wash.
Designated 6/9/00
Acreage: 200,000

Ironwood Forest, Ariz.
Designated 6/9/00
Acreage: 129,000

Kasha-Katuwe Tent Rocks, N.M.
Designated 1/17/01
Acreage: 4,111

Minidoka Internment, Idaho
Designated 1/17/01
Acreage: 73

Pinnacles, Calif.
Designated 1/10/00
Acreage: 24,625

Pompey's Pillar, Mont.
Designated 1/17/01
Acreage: 51

Santa Rosa and San Jacinto Mountains, Calif.
Designated 10/24/00
Acreage: 272,000

Sonoran Desert, Ariz.
Designated 1/17/01
Acreage: 486,149

Upper Missouri River Breaks, Mont.
Designated 1/17/01
Acreage: 377,346

U.S. Virgin Islands Coral Reef, U.S. Virgin Islands
Designated 1/17/01
Acreage: 12,708

Vermillion Cliffs, Ariz.
Designated 11/9/00
Acreage: 293,000

* Expansion of an existing monument


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