RE: grand slam
I believe American and Rocky Mtn. are the same. Tule elk are regulated pretty hard. Pope and Young don't consider them on their list.
I know B&C's list is a little different from P&Y. I think I saw walrus in there somewhere, on B&C's list. I, also, believe Tule IS on the B&C list.
What TEmbry listed is for P&Y.