Dawn at Mineral King ValleyThe story behind the historic Mineral King Valley case, which reveals how the Sierra Club battled Disneys ski resort development and launched a new environmental era in America. In our current age of climate changeinduced panic, its hard to imagine a time when private groups were not actively enforcing environmental protection laws in the courts. It wasnt until 1972, however, that a David and Goliathesque Supreme Court showdown involving the Sierra