A bluff is a

Canadian English Canadian English (CanE, CE, en-CA) encompasses the Variety (linguistics), varieties of English language, English used in Canada. According to the 2016 Canadian Census, 2016 census, English was the first language of 19.4 million Canadians or ...

term used on the

Canadian Prairies The Canadian Prairies (usually referred to as simply the Prairies in Canada) is a region in Western Canada. It includes the Canadian portion of the Great Plains and the Prairie provinces, namely Alberta, Saskatchewan, and Manitoba. These provin ...

to indicate a clump of trees on the prairies, usually poplars or willows."bluff", ''Canadian Oxford Dictionary'' 2nd ed., (Toronto: Oxford University Press, 2004). A bluff is naturally occurring, not cultivated. A bluff of trees normally occurs on the flat lands. "Bluff" in this sense is different from the geographical term "bluff", meaning a cliff.

References

Canadian English Canadian Prairies {{Canada-geo-stub