| A | B |
|---|
| wide, rolling hills | PIEDMONT |
| breaks flow of rivers east & west | CONTINENTAL DIVIDE |
| plateau, steppe climate | GREAT BASIN |
| flat lands that border the east coast | ATLANTIC COASTAL PLAINS |
| ohio river | EASTERN MISSISSIPPI TRIBUTARY |
| extends from appalachian mts. to 300 miles west of the mississippi river | CENTRAL PLAINS |
| extends from canada to alabama | ROCKY MTS. |
| between appalachian mts. and atlantic coastal plains | APPALACHIAN MTS. |
| st. lawrence river | U.S. NATURAL BORDER |
| very old and round | APPALACHIAN MTS. |
| mountains run parrel to east coast | APPALACHIAN MTS |
| extends from manie to florida | ATLANTIC COASTAL PLAINS |
| between pacific coastal ranges and rocky mts. | GREAT BASIN |
| missiouri river | WESTERN MISSISSIPPI TRIBUTARY |
| plateau region of very old, hard rock,mostly north of u.s. | CANADIAN SHEILD |
| located at crest of rocky mts. | CONTINENTAL DIVIDE |
| steep,rugged feature in western u.s. and canada | ROCKY MTS. |
| includes cascades and sierra nevadas | PACIFIC COASTAL RANGES |
| located in central u.s., just east of rocky mts | GREAT PLAINS |
| rich,fertile soil | GREAT PLAINS |
| rio grande | U.S. NATURL BORDER |
