| A | B |
| rendezvous | gatering of trappers and traders |
| beaver | mammal trapped for it's fur |
| Jedediah Smith | most famous "mountain man" |
| William Ashley | owner of fur trade company who organized the 1st rendezvous |
| castoreum | substance from the gland of the beaver used to bait traps |
| Ft. Henry | fort established by John Astor |
| John Astor | began the 1st American Fur Trade Company |
| Blackfeet | Indian tribe that posed a threat to trappers |
| buffalo | animal used for food and clothing for trappers |
| South Pass | rediscovered by moutain men and used by pioneers going west |
| buckskin | skin of the deer, used for clothing by trappers |
| moccasins | footwear worn by many mountain men |
| horse | most important mount and pack animal for the mountain man |
| Hudson Bay Company | first fur trading company in North America |
| coureurs de bois | French fur traders and trappers |
| green-horn | inexperienced trapper, also called a tenderfoot |