Rockies

The Rockies stretch 3,000 miles from Alaska and Canada to the southern border of the western United States. The tallest peak is Mount Elbert in Colorado, at 14,433 feet. Mountain goats, elk, grizzlies, coyotes, and porcupines are just a few of the animals that live in the Rocky Mountains. Trees vary widely across the entire range and include junipers, oaks, willows, firs, spruces, and pines. Early European explorers to the area included Coronado in his search for the Seven Cities of Gold and Lewis and Clark with their Corps of Discovery. Settlers crossed the forbidding range at a number of places. The South Pass in southwestern Wyoming was used by many settlers headed to California, Oregon, and Utah following the Oregon and Mormon trails. Kicking Horse in Canada has a number of passes. The Santa Fe Trail uses a pass on the southern trailing edge of the Rockies that became a very popular western route during the gold rush of the mid-nineteenth century.

From the game's History encyclopedia, AoE3: DE 100.19.18309.