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(Photo courtesy of Marc Coles-Ritchie, Grand Canyon Trust) Conservationists say introduced mountain goats in Utah's La Sal Mo... (Photo courtesy of Marc Coles-Ritchie, Grand Canyon Trust) Conservationists say introduced mountain goats in Utah's La Sal Mo... (Photo courtesy of Marc Coles-Ritchie, Grand Canyon Trust) Conservationists say introduced mountain goats in Utah's La Sal Mo... (Photo courtesy of Marc Coles-Ritchie, Grand Canyon Trust) Conservationists say introduced mountain goats in Utah's La Sal Mo... (Photo courtesy of Marc Coles-Ritchie, Grand Canyon Trust) Conservationists say introduced mountain goats in Utah's La Sal Mo... (Photo courtesy of U.S. Forest Service) The La Sal Mountains rise above fall colors in the Manti-La Sal National Forest. (Scott Sommerdorf | Tribune file photo) The U.S. Forest Service initially opposed a state plan to introduce non-native mo...