sentences:  This trip would be documented in his book "Hunting in the Yellowstone or On the Trail of the Wapiti with Texas Jack in the Land of Geysers".Later on the same trip, the young earl decided to make the whole of Estes Park, Colorado into a game preserve for the exclusive use of himself and his British and Irish friends.By stretching the provisions of the Homestead Act and pre-emption rights, Dunraven claimed 15,000 acres (61 km²) in what later was designated as the present-day Rocky Mountain National Park.