15,987 acres
Description
Castle Peak has an unusual status as one of a few wilderness candidates that span the mid-level elevations in Colorado from 8,000-11,000 feet. Castle Peak includes habitat ranging from the mixed sage and grasslands, through parklike openings intermixed with aspen groves, to spruce-fir forest with trees of substantial size at the highest elevations. Castle Peak itself is a visual reference point for the whole area, an outlier of volcanic rock similar in age and origin to that covering the nearby Flat Tops to the west.