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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 ...
The La Garita Caldera is one of a number of calderas that formed during a massive ignimbrite flare-up in Colorado, Utah, and Nevada from 40 to 18 million years ago, and was the site of massive eruptions about 28.01 ± 0.04 million years ago, during the Oligocene Epoch.
Date/Time Thumbnail Dimensions User Comment; current: 05:19, 3 June 2019: 1,024 × 683 (595 KB): Brian W. Schaller: higher resolution; reduced saturation: 07:52, 21 December 2015
The Wheeler Survey lasted until 1879, when the survey, along with the King and Powell Surveys, were terminated and their work was reorganized as the United States Geological Survey. Wheeler Peak in Nevada (part of the Great Basin National Park), Wheeler Peak in New Mexico (the state high point), and the scenic Wheeler Geologic Area in southern ...
There are 17 National Natural Landmarks in U.S. state of Colorado, one of which extends into Wyoming. They cover areas of geological, biological and historical importance, and include lakes, mountains, rock formations and numerous fossil sites. The landmarks are located in 14 of the state's 64 counties. Five counties each contain all or part of ...
This list of prehistoric sites in the U.S. State of Colorado includes historical and archaeological sites of humans from their earliest times in Colorado to just before the Colorado historic period, which ranges from about 12,000 BC to AD 19th century. The Period is defined by the culture enjoyed at the time, from the earliest hunter-gatherers ...
The Colorado Province took shape as a mobile belt—an area of thinner, orogeny related continental crust lacking the deep "keel" of rock, which stabilized the neighboring Wyoming Craton and other cratons like it. Throughout Colorado's geologic history, rocks have often been deformed, metamorphosed and overprinted, obscuring the ancient record.
The U.S. State of Colorado has designated 96 natural areas of the state for special protection, as of 2023. [1] [2] The Colorado Natural Areas Program was established in 1977 to preserve and protect special areas of the state with distinctive flora, fauna, ecological, geological, and paleontologic features.