The Rocky Mountains are a mountain range stretching across the western United States of America and Canada.
Percy Jackson and the Olympians
The Lightning Thief
As they quest to the Underworld, Percy Jackson, Annabeth Chase, and Grover Underwood stop in Denver, Colorado and to nearby Waterland.
The Battle of the Labyrinth
After escaping Daedalus's Workshop, Percy, Annabeth, Nico di Angelo and Rachel Elizabeth Dare end up in the Garden of the Gods and look for an entrance to the Labyrinth in Colorado Springs before finding one in the Western Museum of Mining and Industry.
The Heroes of Olympus
The Lost Hero
Jason Grace, Piper McLean, Leo Valdez, and Gleeson Hedge go to Pikes Peak to ask Aeolus for help.
Trivia
- The Rocky Mountains run north to south from the boarder between the Canadian provinces of British Columbia and Alberta to the U.S. States of Idaho, Montana, Wyoming, Utah, Colorado, and New Mexico.