Ing Mabatung Bunduk (Rocky Mountains, aka The Rockies), tayid-tayid lang bulubunduk a peka-galudgud ning karagulan a sistemang kabundukan, at maragul nang parti ning kapuluang North America. Karaniwan, ding bulubunducan a makakayabe karing Batuan (Rockies) mamatyat la manibat keng dane norteng Alberta at British Columbia dane-timog papuntang New Mexico, distansyang atlung libung milya (4,800 kilometers). Deng Rockies maka-saluput la kareng Great Plains dane aslagan, at Interior Plateau, Coast Mountains of Canada, Columbia Plateau and Basin and Range Province of the United States, dane albugan.
Ing Mabatung Bunduk atin yang e kumulang dinalan (100) a bulubundukan, makapitna kareng apat a tapuk:
- Canadian Rockies and Northern Rockies of Montana and northeastern Idaho;
- Middle Rockies of Wyoming, Utah, and southeastern Idaho;
- Southern Rockies, mainly in Colorado and New Mexico;
- Colorado Plateau in the Four Corners region of Utah, Colorado, New Mexico, and Arizona.
