The North American 27, or "Super Slam" as coined by Chuck Adams, includes:

Grizzly Bear, Black Bear, Polar Bear, Brown Bear, Woodland Caribou, Barren-Ground Caribou, Mt. Caribou, Quebec-Labrador Caribou, Dall Sheep, Stone Sheep, Rocky Mt. Bighorn Sheep, Desert Bighorn Sheep, Pronghorn Antelope, Rocky Mt. Goat, Mule Deer, White-tailed Deer, Coues Deer, Columbia Black-tailed Deer, Sitka Black-tailed Deer, Alaskan-Yukon Moose, Canada Moose, Shiras Moose, Roosevelt Elk, Rocky Mt. Elk, Musk Ox, Bison, and Cougar.



They added one more animal to the list: Central Canada B-G Caribou

http://www.outfittersworld.com/slams.html