The Greenhorn Mountain Wilderness Area is located in the San Isabel National Forest with neighboring towns of Walsenburg, Pueblo, Rye, Green Towers, and San Isabel. The area offers some of the most primitive and remote wilderness in the entire state of Colorado. There are alpine peaks that seem to burst into the sky along with a single lake that draws visitors from all over the state. The region covers over 22,000 acres and has eleven miles of trail. The area was recognized and designated as a wilderness in 1993 and there are now over 84 hunting areas.
Many of the slopes near the mountains in Greenhorn stay clear of snow accumulations and as a result serve as a winter range for many wildlife animals such as the bighorn sheep, elk, and mule deer. The accessible area near Greenhorn Mountain is small and dry. There are not a lot of areas for overnight stays in the wilderness but that doesn't prevent people from visiting this outdoor area. There are no trails in the southern portion of the wilderness but solitude is guaranteed. In order to get to some of the destinations, bushwhacking is necessary through the dense woodlands.