Colorado is a state in the United States of America.
After escaping Daedalus' Workshop Percy and Annabeth, along with Rachel Elizabeth Dare and Nico di Angelo end up in the Garden of the Gods and search the nearby town, Colorado Springs, for an entrance into the Labyrinth. They find one in the Western Museum of Mining and Industry.
|Not part of Riordanverse|
Nizhoni Begay, Mac Begay, and Davery Descheny go to Sisnaajiní, a mountain in the southern portion of the state, to get a perfect white shell for Spider Woman. Nizhoni is later taken to Dibé Nitsaa, another mountain in the state, to find its guardian Black Jet Girl.
- When the Colorado Territory was formed, it was carved out of parts of the nearby territories of Utah, New Mexico, Nebraska and Kansas.