Aztec Mountain is a 13,310-foot (4,057 m) summit in La Plata County, Colorado, United States.

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Aztec Mountain
North aspect
Highest point
Elevation	13,310 ft (4,057 m)[1][2]
Prominence	617 ft (188 m)[3]
Parent peak	Jupiter Mountain (13,836 ft)[3]
Isolation	1.95 mi (3.14 km)[3]
Coordinates	37°35′30″N 107°36′57″W[4]
Geography
Aztec Mountain Location in Colorado Show map of Colorado Aztec Mountain Aztec Mountain (the United States) Show map of the United States
Country	United States
State	Colorado
County	La Plata County
Protected area	Weminuche Wilderness
Parent range	Rocky Mountains San Juan Mountains Needle Mountains[2]
Topo map	USGS Columbine Pass
Climbing
Easiest route	class 2+[3]

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Aztec Mountain is situated in the Needle Mountains which are a subrange of the San Juan Mountains.^[2] The remote mountain is located 27 miles (43 km) north-northeast of the community of Durango and set in the Weminuche Wilderness on land managed by San Juan National Forest. Precipitation runoff from the mountain's north slopes drain to Needle Creek which is a tributary of the Animas River and the south slope drains to the Florida River via Missouri Gulch. Topographic relief is significant as the summit rises 2,500 feet (762 m) above Needle Creek in 0.8 miles (1.3 km). The mountain's toponym has been officially adopted by the United States Board on Geographic Names,^[4] and has been recorded in publications since at least 1906.^[5]

According to the Köppen climate classification system, Aztec Mountain is located in an alpine subarctic climate zone with cold, snowy winters, and cool to warm summers.^[6] Due to its altitude, it receives precipitation all year, as snow in winter and as thunderstorms in summer, with a dry period in late spring. Climbers can expect afternoon rain, hail, and lightning from the seasonal monsoon in late July and August.

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