The fossilized remains of Whitebark pine trees found beneath a melting ice patch in the Yellowstone region were once part of an ancient forest that thrived for centuries before disappearing ...
WEST YELLOWSTONE, Mont.— Four conservation groups today challenged a U.S. Forest Service plan to clearcut more than 4,600 acres of pine forests, log across an additional 9,000 acres, and bulldoze up ...
一些您可能无法访问的结果已被隐去。
显示无法访问的结果