At least 23 national parks -- incl. Yellowstone, Olympic, Rocky Mountain, Sequoia, Blue Ridge, Carlsbad Caverns, Theodore Roosevelt, Blue Ridge Parkway and Yosemite -- are threatened by the Bush administration¿s decision to repeal the Roadless Area Conservation Rule. The parks will suffer from the collateral damage of timber clear-cuts, reduced wildlife populations due to destroyed habitats and migratory corridors, streams destroyed by sediment, and the noise and stench of industrial development. The most imminent threat is posed to 23 national parks and monuments in 16 states which are among the most popular in the national park system. Points out direct ways that we can work to stop this destruction of our public lands. Maps, table and graph.