They're all mountain ranges!
The Rockies The Appalachians The Alaska Range The Sierra Nevada The Cascades The Sierra Madres The Coast Range The Brooks Range
Cascades, Appalachians, Rockys, and The Blue Mountains
Rockies Appalachians Sierras Cascades
Some major mountain ranges in the USA include the Rocky Mountains, the Appalachian Mountains, the Sierra Nevada, and the Cascade Range. These mountain ranges cover a large portion of the country and offer a variety of outdoor recreational opportunities.
Major mountain ranges in the Eastern United States include the Appalachian Mountains. In the Western United States, major mountain ranges include the Rocky Mountains, Sierra Nevada, Cascade Range, and the Coast Range.
The Rockies The Appalachians The Alaska Range The Sierra Nevada The Cascades The Sierra Madres The Coast Range The Brooks Range
In the 48 contiguous states the four major ranges are: Rockies Appalachians Sierras Cascades
In California
Cascades, Appalachians, Rockys, and The Blue Mountains
According to Wikipedia, the Sierra Nevada began forming during the Triassic period, and the Appalachians were formed during the Ordovician period. This means that the Appalachians are much older. Generally, more round, rolling mountains like the Appalachians are older than sharp, jagged ranges like the Rockies or Sierra Nevada.
Rockies Appalachians Sierras Cascades
Some major mountain ranges in the USA include the Rocky Mountains, the Appalachian Mountains, the Sierra Nevada, and the Cascade Range. These mountain ranges cover a large portion of the country and offer a variety of outdoor recreational opportunities.
Appalachian
Major mountain ranges in the Eastern United States include the Appalachian Mountains. In the Western United States, major mountain ranges include the Rocky Mountains, Sierra Nevada, Cascade Range, and the Coast Range.
The Rockies, the Appalachians, The Sierra Nevada
the rocky mountains, sierra Nevadas or Appalachians
the major mountain ranges of California are the Sierra Nevadas and the Cascades.