ORIGINAL: AKjim

I believe you are refering to what is more commonly known as the 'Super slam'. A "Grandslam' is the taking of all 4 species of N American wild sheep. The Super slam consists of taking one of all
4 Sheep species
all 5 caribou species
2 Elk species
Bison
5 Deer species
1 mountain lion
1 mountain goat
all 4 bear species
all 3 moose species
1 muskox
1 antelope

Some people have argued that Walrus should be added to this list.

I'm maybe a third of the way there!