Великие Равнины (горный район)

Central Great Plains 0/2/0

Блэк-Хиллс 0/96/0

• Northern Black Hills 0/46/0
• Southern Black Hills 0/39/0
• Bear Lodge Mountains 0/11/0

Canadian Great Plains 0/80/0

• Western International Border Area Plains 0/75/0
• North-Central Alberta Plains 0/5/0
• Caribou Mountains 0/0/0
• Hay-Slave-Liard Plains 0/0/0
• Manitoba Area Plains 0/0/0
• East Saskatchewan Plains 0/0/0
• Central Alberta-Saskatchewan Plains 0/0/0

Northern Us Great Plains 0/6/1

Southern Great Plains 0/149/6

• Примексиканская низменность 0/100/4
• Raton Mesa 0/49/2