1
Rolling plains, mesas, hills and part of Tornado Alley
2
Western most natural region
5
Area of low elevation, humid and hot climate
7
Very dry, with few trees, very hot summers and very cold winters
8
Largest city in the North Central Plains Region
9
Piece of land
10
Largest city in the Great Plains Region
11
Largest city in the Coastal Plains Region
12
Enclosed or partially enclosed water areas
13
Largest city in the Mountains and Basins Region
14
A fracture in the rock of earth's surface
15
Naturally flat topped hill
