by whom?
John C. Frémont's
Colorado River
 John C. Frémont's 1843 Great Basin expedition proved that no river traversed the Great Basin and Sierra Nevada, officially debunking the Buenaventura myth.
directions to i-70 east from my current location Transcontinental Interstate Highway in the United States, when was it opened for public? October 14, 1992. is it located on the banks of any river? Yes Colorado river how long is it? It stretches' from Cove Fort, Utah, to Baltimore, Maryland which main tributaries does it have? It is joined by over 25 significant tributaries, of which the Green River is the largest by both length and discharge. what type of people can be seen here? Paleo-Indians of the Clovis and Folsom cultures, who first arrived on the Colorado Plateau about 12,000 years ago when was it explored first? During the 18th and early 19th centuries,
wiki:13581147
Colorado River [SEP] Early explorers
Mountain man Jedediah Smith reached the lower Colorado by way of the Virgin River canyon in 1826. Smith called the Colorado the "Seedskeedee", as the Green River in Wyoming was known to fur trappers, correctly believing it to be a continuation of the Green and not a separate river as others believed under the Buenaventura myth. John C. Frémont's 1843 Great Basin expedition proved that no river traversed the Great Basin and Sierra Nevada, officially debunking the Buenaventura myth.