内容简介：
It is little more than twenty years since the first efforts were made to prevent the killing of game within that National Reservation, and only about ten years since Congress provided an effective method for preventing such killing. He must be dull indeed who does not realize what that game refuge has done for a great territory, and of how much actual money value its protection has been to the adjoining States of Montana and Idaho, and especially of Wyoming. The visit of President Roosevelt to the National Park last spring made these conditions plain to the whole nation.