Fall in Southern Colorado and Northern New Mexico
There are 1.9 million acres of aspen trees in Colorado - over one billion trees that if placed together would cover Rhode Island and Delaware. Aspen trees in Colorado grow from 6,500 to 10,500 feet in elevation. Although many factors make leaves turn color, as a general rule, higher the elevation, the sooner the leaves turn gold. That means that over a period of time, can often see a variety of shades of Colorado on one mountainside, with deeper golds on top at 10,000 feet, blending to pale yellow in the 8,000 foot range.