Carol a Metís Card is a card issued by various provincial Metís groups in Canada and I think some parts of the US. Some in Canada have used it to pass freely at the border and work in the US, although this is not strictly legal, as Metís do not have recognized aboriginal rights or the same status as aboriginal people. There has been some legal concessions in Canada as to hunting and fishing rights as far as I know.

The card can be handy though, to prove your ancestry when crossing the border, as it does indicate you are a descendant of First Nations people and a lot of guards on the border sometimes think that the Metís are some Indian tribe in Canada.

The most famous Metís in Canada was Louis Riel and perhaps the most controversial figure in Canadian history.