Of the highest major summits of Colorado, the following 55 peaks exceed 4000 meters elevation This list of the 55 major 4000-meter summits of Colorado includes 30 peaks with more than 500 meters of topographic prominence but less than 4267 meters in elevation: Grizzly Peak, Mount Ouray, Vermilion Peak, Mount Silverheels, Rio Grande Pyramid, Bald Mountain, Mount Oso, Mount Jackson, Bard Peak, West Spanish Peak, Mount Powell, Hagues Peak, Tower Mountain, Treasure Mountain, North Arapaho Peak, Parry Peak, Bill Williams Peak, Sultan Mountain, Mount Herard, West Buffalo Peak, Summit Peak, Middle Peak, Antora Peak, Henry Mountain, Hesperus Mountain, Jacque Peak, Bennett Peak, Conejos Peak, Twilight Peak, and South River Peak.