Environmental Update Main Wildlands Main Overview Arctic National Wildlife Refuge Giant Sequoia National Monument Yellowstone National Park Everglades Utah Wilderness Maine Woods Northern Rockies Protect Our Coasts Regional Campaigns National Monuments Special Reports     Grazing Committee Lands Protection Program Lewis & Clark Campaign Off-Road Vehicles ESA: Wildlife & Endangered Species Wildlife & Endangered Species Committee Recreation Issues Committee Environmental news, green living tips, and ways to take action: Subscribe to the Sierra Club Insider!

President Clinton designated a total of 22 new national monuments during the two terms of his administration. In total, they preserve more than 6 million acres for future generations. Name Location Acres Agua Fria AZ 71,100 President Lincoln and Soldiers' Home DC 2.3 Buck Island Reef VI 18,100* California Coastal CA † Canyons of the Ancients CO 163,800 Carrizo Plain CA 246,500 Cascade-Siskiyou OR 52,000 Craters of the Moon ID 714,400* Giant Sequoia CA 327,800 Governors Island NY 20 Grand Canyon-Parashant AZ 1,014,000 Grand Staircase-Escalante UT 1,900,000 Hanford Reach WA 195,000 Ironwood Forest AZ 128,900 Kasha-Katuwe Tent Rocks NM 4,100 Minidoka Internment ID 73 Pinnacles CA 24,200* Pompeys Pillar MT 51 Sonoran Desert AZ 486,100 Upper Missouri River Breaks MY 377,300 US Virgin Islands Coral Reef VI 12,700 Vermillion Cliffs AZ 294,000 *Expansion of existing monument; number indicates total acreage. †Monument consists of offshore rocks, islands, and reefs along the state’s 840-mile coastline. For more details on specific monuments, see "Six Million Sweet Acres," in Sierra magazine. Up to Top