the usa is the third or fourth largest country by total area (Russia, Canada, China) and the third by population (China, India).
Mount McKinley (Alaska) – the hightest point in North America.
The Appalachian Mountains
West of the Appalachians lies the Mississippi River basin and two large tributaries, The Ohio River and The Tennessee River
The Rocky Mountains form a large portion of the Western U.S.
The highest peak of the Rockies is found in Colorado ( Mount Elbert)
Mount Whitney is the highest summit
The southern tip of Florida is subtropical as is Hawaii
The climate is arid (suchy) in the Great Basin, desert in the Soutwest; meiterranean coastal California and Much of Western Mountains are alpaine.
oceanic in coastal Oregon and Washington and southern Alaska. Most of Alaska is subarctic or polar.
Dallas (Texas) ; Houston (Texas as well)
mountains to the west; hills to the east
the lowest point : Death Valley
the highest point : Mount McKinley (Alaska)