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La Garita Caldera is a large caldera and extinct supervolcano in the San Juan volcanic field in the San Juan Mountains around the town of Creede in southwestern Colorado, United States. [1] It is west of La Garita, Colorado .
The La Garita Mountains extend from near the town of Creede east and northeast over 30 miles (48 km) toward the San Luis Valley. The range is marked by a circuitous ridge with the westernnmost peak being Phoenix Peak (elevation 13,895 feet (4,235 m)) near the Continental Divide and the easternmost peak being Lookout Mountain (elevation 11,516 ...
Wheeler Geologic Area Location within Colorado. The Wheeler Geologic Area is a highly eroded outcropping of layers of volcanic ash, located in the San Juan Mountains in southern Colorado, United States. [1] It is about 10 miles east north-east of Creede. The ash is the result of eruptions from the La Garita Caldera approximately 25 million ...
One, La Garita Caldera, is 35 miles (56 km) in diameter. Large beds of lava, some extending under the floor of the San Luis Valley, are characteristic of the eastern slope of the San Juans. The eruption of the La Garita Caldera shaped the San Juan Mountains by completely obliterating the volcanoes that once stood in the area. [1] Tourism
It consists mainly of volcanic rocks that form the largest remnant of a major composite volcanic field that covered most of the southern Rocky Mountains in the Middle Tertiary geologic time. [1] There are approximately fifteen calderas known in the San Juan Volcanic Fields; however, it is possible that there are two or even three more in the ...
The La Garita Wilderness is a U.S. Wilderness Area located in the La Garita Mountains of southern Colorado. The 129,626-acre (524.58 km 2 ) wilderness established in 1964 in Gunnison and Rio Grande National Forests includes segments of the Colorado Trail and the Continental Divide Trail .
Name Elevation Location Last eruption meters feet Coordinates; Malumalu: Last 8,000 years Ta‘u-931: 3054: 30,000 years ago [15]: Ofu-Olosega: 639: 2096: 1866 unnamed submarine cone eruption
La Garita Caldera—Fish Canyon Tuff: 27.8 San Juan volcanic field, Colorado 5,000 Part of at least 20 large caldera-forming eruptions in the San Juan volcanic field and surrounding area that formed around 26 to 35 Ma. [19] [20] Lund Tuff 29.2 Indian Peak-Caliente Caldera Complex 4,400