The National Park Service is developing rules to allow local park officials to restrict and possibly ban noisy personal watercraft.
Park officials in Yellowstone give rangers permission to shoot bison heading out of the park this winter.
Utah's congressional delegation continues to try to dismantle the new Grand Staircase-Escalante National Monument even as the locals begin to learn to live with it.
Snowmobilers and the tourist industry object to the Park Service's plan to close some Yellowstone trails to snowmobiling in an effort to curb the winter wandering of park bison.
Yellowstone Park officials sign a contract that formally opens the park's hot springs to "bioprospecting," allowing the San Diego company, Diversa Corp., to collect samples of hot-water microbes called thermophiles.
In their own words, ecologist Charles Kay denounces Yellowstone's policy of "natural regulation," while ecologist Mark Boyce defends it.
Scientist Richard Keigley studies Yellowstone's trees to back up his contention that the park's elk herds are out of control and need regulation.
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