Prairies once dominated the landscape in North America, supporting wildlife such as the plains bison.

Stretching from Alberta, Saskatchewan, and Manitoba all the way south to Texas, prairies covered an area of 1 million square miles of the Great Plains.

To the north, shrublands such as the Peace River Parkland form a transition to the boreal forests of upper Canada.

On the east, tall grasses grade into eastern deciduous forests in the Prairie-and-Oak Transition Zone.