The Spanish Peaks are two large igneous stocks which form an eastern outlier of the Culebra Range, a subrange of the Sangre de Cristo Mountains. West Spanish Peak is the easternmost 4000 meter (13,123 ft) mountain peak in the United States. Due to its position well east of the Culebra Range and on the edge of the eastern plains of Colorado, West Spanish Peak enjoys great local vertical relief in almost all directions. For example, it rises over 6,000 ft (1,828 m) in less than 6.5 miles (10.5 km) on both its north and south flanks. Though not a fourteener, West Spanish Peak is the twelfth most topographically prominent peak in the state.