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Slumgullion Earthflow Natural Area
The Slumgullion Earthflow in the San Juan Mountains in Hinsdale County, Colorado, Hinsdale County, Colorado has been a National Natural Landmark since 1983. It is also a Colorado Natural Area and an Area of Critical Environmental Concern. The earthflow, a slow-moving landslide, crawled down the valley about 700 years ago creating the long and wide mass. The earthflow lies a few miles south east of Lake City, Colorado, Lake City. The landmark site covers and is owned by the US Forest Service and the Bureau of Land Management. It is "a striking example of mass wasting (the movement of large masses of earth material)." The Lake Fork of the Gunnison River was dammed by the earthflow, creating Lake San Cristobal. A second earthflow has been moving continuously for about 300 years over older stable rock. It moves at a rate of about 7 meters (23 feet) per year. The area is a habitat for elk and deer. It is crossed by Colorado Highway 149, the principal highway of the area connecting ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hinsdale County, Colorado
Hinsdale County is a county located in the U.S. state of Colorado. As of the 2020 census, the population was 788, making it the second-least populous county in Colorado. With a population density of only , it is also the least-densely populated county in Colorado. The county seat and only incorporated municipality in the county is Lake City. The county is named for George A. Hinsdale, a prominent pioneer and former Lieut. Governor of Colorado Territory. Geography According to the U.S. Census Bureau, the county has a total area of , of which is land and (0.5%) is water. Hinsdale County is one of the most remote counties in Colorado and the United States. The county is covered by mountains, including multiple fourteeners, and contains one of the largest roadless areas in the country. The continental divide crosses the county twice. Most of the county is divided among several different national forests and the Weminuche Wilderness area. Adjacent counties * Gunnison – north ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
US Forest Service
The United States Forest Service (USFS) is an agency of the U.S. Department of Agriculture that administers the nation's 154 national forests and 20 national grasslands. The Forest Service manages of land. Major divisions of the agency include the Chief's Office, National Forest System, State and Private Forestry, Business Operations, and Research and Development. The agency manages about 25% of federal lands and is the only major national land management agency not part of the U.S. Department of the Interior, which manages the National Park Service, the U.S. Fish and Wildlife Service, and the Bureau of Land Management. History The concept of national forests was born from Theodore Roosevelt's conservation group, Boone and Crockett Club, due to concerns regarding Yellowstone National Park beginning as early as 1875. In 1876, Congress formed the office of Special Agent in the Department of Agriculture to assess the quality and conditions of forests in the United States ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Natural Landmarks In Colorado
National may refer to: Common uses * Nation or country ** Nationality – a ''national'' is a person who is subject to a nation, regardless of whether the person has full rights as a citizen Places in the United States * National, Maryland, census-designated place * National, Nevada, ghost town * National, Utah, ghost town * National, West Virginia, unincorporated community Commerce * National (brand), a brand name of electronic goods from Panasonic * National Benzole (or simply known as National), former petrol station chain in the UK, merged with BP * National Car Rental, an American rental car company * National Energy Systems, a former name of Eco Marine Power * National Entertainment Commission, a former name of the Media Rating Council * National Motor Vehicle Company, Indianapolis, Indiana, USA 1900-1924 * National Supermarkets, a defunct American grocery store chain * National String Instrument Corporation, a guitar company formed to manufacture the first resonat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Juan Mountains (Colorado)
The San Juan Mountains is a high and rugged mountain range in the Rocky Mountains in southwestern Colorado and northwestern New Mexico. The area is highly mineralized (the Colorado Mineral Belt) and figured in the gold and silver mining industry of early Colorado. Major towns, all old mining camps, include Creede, Lake City, Silverton, Ouray, and Telluride. Large scale mining has ended in the region, although independent prospectors still work claims throughout the range. The last large scale mines were the Sunnyside Mine near Silverton, which operated until late in the 20th century and the Idarado Mine on Red Mountain Pass that closed down in the 1970s. Famous old San Juan mines include the Camp Bird and Smuggler Union mines, both located between Telluride and Ouray. The Summitville mine was the scene of a major environmental disaster in the 1990s when the liner of a cyanide-laced tailing pond began leaking heavily. Summitville is in the Summitville caldera, one ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Landforms Of Hinsdale County, Colorado
A landform is a natural or anthropogenic land feature on the solid surface of the Earth or other planetary body. Landforms together make up a given terrain, and their arrangement in the landscape is known as topography. Landforms include hills, mountains, canyons, and valleys, as well as shoreline features such as bays, peninsulas, and seas, including submerged features such as mid-ocean ridges, volcanoes, and the great ocean basins. Physical characteristics Landforms are categorized by characteristic physical attributes such as elevation, slope, orientation, stratification, rock exposure and soil type. Gross physical features or landforms include intuitive elements such as berms, mounds, hills, ridges, cliffs, valleys, rivers, peninsulas, volcanoes, and numerous other structural and size-scaled (e.g. ponds vs. lakes, hills vs. mountains) elements including various kinds of inland and oceanic waterbodies and sub-surface features. Mountains, hills, plateaux, and plains are the fou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Creede, Colorado
The historic City of Creede is (despite its official name) a Statutory Town and the county seat of Mineral County, Colorado, United States. It is the most populous community and the only incorporated municipality within the county. The town population was 257 at the 2020 United States census. History ] Travelers to this area appeared in the early 19th century. Tom Boggs, a brother-in-law of Kit Carson, farmed at Wagon Wheel Gap in the summer of 1840. The first silver discovery was made at the Alpha mine in 1869, but the silver could not be extracted at a profit from the complex ores. Ranchers and homesteaders moved in when stagecoach stations (linking the mining operations over the Divide with the east) were built in the 1870s, but the great "Boom Days" started with the discovery of rich minerals in Willow Creek Canyon in 1889. Creede was the last silver boom town in Colorado in the 19th century. The town leapt from a population of 600 in 1889 to more than 10,000 people ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colorado Highway 149
State Highway 149 (SH 149) is a state highway in southwestern Colorado, United States. SH 149's southern terminus is at U.S. Highway 160 (US 160) in South Fork, and the northern terminus is at US 50 west of Gunnison. The entire route is also known as the Silver Thread Colorado Scenic & Historic Byway. Route description SH 149 begins in the south at its junction with US 160 at South Fork. From there the road winds its way generally northward through the San Juan Mountains. The first portion of the road parallels the upper Rio Grande as it passes through Rio Grande National Forest. SH 149 winds through the mountains for before coming to the historic mining town of Creede. From there the road continues its climb into the mountains and eventually turns away from the Rio Grande to cross the Continental Divide at Spring Creek Pass at an elevation of . At this point the road passes into Gunnison National Forest and, after a brief descent, begins an even hi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bureau Of Land Management
The Bureau of Land Management (BLM) is an agency within the United States Department of the Interior responsible for administering federal lands. Headquartered in Washington DC, and with oversight over , it governs one eighth of the country's landmass. President Harry S. Truman created the BLM in 1946 by combining two existing agencies: the General Land Office and the Grazing Service. The agency manages the federal government's nearly of subsurface mineral estate located beneath federal, state and private lands severed from their surface rights by the Homestead Act of 1862. Most BLM public lands are located in these 12 western states: Alaska, Arizona, California, Colorado, Idaho, Montana, Nevada, New Mexico, Oregon, Utah, Washington and Wyoming. The mission of the BLM is "to sustain the health, diversity, and productivity of the public lands for the use and enjoyment of present and future generations." Originally BLM holdings were described as "land nobody wanted" because ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Earthflow
An earthflow (earth flow) is a downslope viscous flow of fine-grained materials that have been saturated with water and moves under the pull of gravity. It is an intermediate type of mass wasting that is between downhill creep and mudflow. The types of materials that are susceptible to earthflows are clay, fine sand and silt, and fine-grained pyroclastic material.Easterbrook, D: “Surface Processes and Landforms”, page 78-79. Prentice-Hall, Inc, 1999 When the ground materials become saturated with enough water, they will start flowing (soil liquefaction). Its speed can range from being barely noticeable to rapid movement. The velocity of the flow is dictated by water content: the higher the water content is, the higher the velocity will be. Because of the dependency on water content for the velocity of the flow, it can take minutes or years for the materials to move down the slope. Features and behavior Earthflows are just one type of mass movement that can occur on a h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colorado
Colorado (, other variants) is a state in the Mountain states, Mountain West subregion of the Western United States. It encompasses most of the Southern Rocky Mountains, as well as the northeastern portion of the Colorado Plateau and the western edge of the Great Plains. Colorado is the List of U.S. states and territories by area, eighth most extensive and List of U.S. states and territories by population, 21st most populous U.S. state. The 2020 United States Census, 2020 United States census enumerated the population of Colorado at 5,773,714, an increase of 14.80% since the 2010 United States Census, 2010 United States census. The region has been inhabited by Indigenous peoples of the Americas, Native Americans and their Paleo-Indians, ancestors for at least 13,500 years and possibly much longer. The eastern edge of the Rocky Mountains was a major migration route for early peoples who spread throughout the Americas. "''Colorado''" is the Spanish adjective meaning "ruddy", th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Area Of Critical Environmental Concern
Areas of Critical Environmental Concern (ACEC) is a conservation ecology program in the Western United States, managed by the Bureau of Land Management (BLM). The ACEC program was conceived in the 1976 Federal Lands Policy and Management Act (FLPMA), which established the first conservation ecology mandate for the BLM. The FLPMA mandate directs the BLM to protect important riparian corridors, threatened and endangered species habitats, cultural and archeological resources, as well as unique scenic landscapes that the agency assesses as in need of special management attention. Criteria To be considered a potential ACEC an area must meet criteria of both relevance and importance. Relevance An area meets the relevance criteria of an ACEC if it contains one or more of the following: *A significant historic, cultural, or scenic value; *A fish or wildlife resource; *A natural process or system (including but not limited to areas supporting rare, endemic, relict, or endangered plant ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colorado Natural Area
The U.S. State of Colorado has designated 95 natural areas of the state for special protection. 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. It is a program of Colorado Parks and Wildlife that identifies and protects public, and in some cases private, areas with at least one unique or high-quality natural feature of statewide significance. Land management agreements are made with landowners concerning private property. __TOC__ Natural areas The Colorado Natural Areas are: * Aiken Canyon Natural Area * Antero-Salt Creek Natural Area *Arikaree River Natural Area * Badger Wash Natural Area *Blacks Gulch Natural Area * Blue Mountain Natural Area * Bonny Prairie Natural Area *Boulder Mountain Park Natural Area in Boulder Mountain Park *Brush Creek Fen Natural Area * California Park Natural Area * Castlewood Canyon Natural Area in Castlewood ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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