Geography of Colorado
The Rocky Mountains within Colorado contain 54 peaks that are 14,000 feet (4270 m) or higher, known as fourteeners. The mountains are timbered with conifers and aspen to the tree line, at an elevation of about 12,000 feet (3,650 m) in southern Colorado to about 10,500 feet (3,200 m) in northern Colorado; above this only alpine vegetation grows. The Rockies are snow-covered only in the winter; most snow melts by mid-August with the exception of a few small glaciers. The Colorado Mineral Belt, stretching from the San Juan Mountains in the southwest to Boulder and Central City on the front range, contains most of the historic gold and silver mining districts of Colorado.
West Spanish Peak
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.