August 2009. There is a 55-minute tram tour through this massive enclosure, which is a gigantic 435 acres of meadows, thick forests and two small lakes. All of the animals have free rein of the entire area, and they can only be seen from the tour. There are 7 species of hoofstock in the enclosure: woodland caribou, roosevelt elk, blacktail deer, rocky mountain goat, bighorn sheep, bison and moose.