Porcupine Hills, Alberta
Northern Glaciated Great Plains, Alberta
Midland Provincial Park
Wichita Mountains National Wildlife Refuge
High Great Plains, Oklahoma
High Great Plains, Nebraska
High Great Plains, Nebraska
Avalon Peninsula, Newfoundland and Labrador
Ozark Mountains + Highlands, Arkansas
High Great Plains, Kansas
Platte River Basin + Eastern Nebraska, Nebraska
Flint Hills, Kansas