View a map of this area and more on Natural Atlas. La dernière modification de cette page a été faite le 30 avril 2020 à 19:16. The seleniferous soil the shale produces have come to the subsurface due to weathering of the rock and uplift. The Gunnison River is a tributary of the Colorado River, 180 miles long, in the Southwestern state of Colorado. The reservoirs are located along the upper part of the Gunnison River. [33] These attempts include giving funding to farmers of the Gunnison River Basin to reduce the amount of sedimentation deposited back into the river and therefor lower the overall amount of selenium being loaded into the river via tributaries. Fish and Wildlife Service", "Selenium Distribution for Soils Derived from Mancos Shale in Gunnison and Uncompahgre River Basins, West-Central Colorado", "Assessment of dissolved-selenium concentrations and loads in the Lower Gunnison River Basin, Colorado, as part of the Selenium Management Program, 2011–17", "Prediction of Areas Where Irrigation Drainage May Induce Selenium Contamination of Water", "Selenium Concentrations in the Colorado Pikeminnow (, "Selenium Effects on Endangered Fish in the Colorado River Basin", "Field Assessment of Colorado pikeminnow Exposure to Mercury Within Its Designated Critical Habitat in Colorado, Utah, and New Mexico", "The chemical cycle and bioaccumulation of mercury", "Long-term mark-recapture monitoring of a Colorado pikeminnow Ptychocheilus lucius population: assessing recovery progress using demographic trends", "Salinity & Selenium Control | Colorado Basin Roundtable", "Gunnison River, with elevated selenium levels, faces review for reclassification", "Salinity Control in the Gunnison and Colorado River Basins", "EPA awards Colorado Department of Public Health and Environment $1,170,000 to improve water quality in the Lower Arkansas and Lower Gunnison River basins", "Gunnison River Information and Fishing Report", International Boundary and Water Commission, Metropolitan Water District of Southern California, https://en.wikipedia.org/w/index.php?title=Gunnison_River&oldid=1001425458, Tributaries of the Colorado River in Colorado, Wikipedia articles with WORLDCATID identifiers, Creative Commons Attribution-ShareAlike License, USGS Station 09152500 GUNNISON RIVER NEAR GRAND JUNCTION, CO, This page was last edited on 19 January 2021, at 16:47. The Gunny is a large river and most of it can be floated when the flows are high enough. Selenium and mercury contamination of the Gunnison River results from irrigation of soils that are naturally high in selenium, mining activity, and atmospheric mercury deposition. It then winds through desert canyonlands, where it receives Kannah Creek. [22] Agricultural areas in the Gunnison River Basin are heavily farmed and provide large amounts of sediment during the growing months. [26] Elevated selenium exposure can also cause malformations in adult fish. It was again seen in 1776 by Silvestre Vélez de Escalante. [37] Most recently, the Gunnison River will soon be evaluated by state water quality officials to determine if the improvement programs have been successful in reducing the selenium and salinity levels toxic to the endangered fish. [34] By reducing the amount of runoff being directed into the Gunnison, less selenium has been deposited into the river by irrigation drainage. [30] Humpback chub, bonytail chub, Colorado pikeminnow, and the razorback sucker are susceptible to elevated concentrations of mercury based on their long distance annual migrations to reproduce. This FB page and gunnisonriverbasin.org are your sources of information about the Gunnison River Basin. Fly Fishing CO StoneflyStudio. This section of the Gunnison River starts in open space then enters a canyon below the Bluff Ridge Trail. It is the largest tributary of the Colorado River in Colorado, with a mean flow of 2,570 cu ft/s (73 m 3 /s). Some of these organizations and plans include The Gunnison River Basin’s Selenium Management Plan, The Selenium Control Program, and the Bureau of Reclamation's Gunnison Basin Selenium Management Program. Salinity is being addressed by implementing local investments into the water use infrastructure by converting old systems to direct pipeline and sprinklers to help reduce the amount of runoff into the Gunnison. This is a great jumping-off point for whitewater rafting and kayaking, and it is also known as the rock climbing headquarters for the valley. Drake on top and PMD on bottom. I was catching them 50/50 on both the flys. Rafting & Kayaking The Gunnison River is located in western Colorado, and it is one of the largest tributaries of the Colorado river. Below Crystal Dam, the Gunnison River begins to roar through massive cataracts. According to a progress report from 2019, the Gunnison Basin Selenium Management Program continues its efforts to “develop and implement a Selenium Management Program (SMP), in cooperation with the State of Colorado and Gunnison River basin water users to reduce adverse effects of selenium on endangered fish species in the Gunnison and Colorado rivers."[13]. USGS 09114500 GUNNISON RIVER NEAR GUNNISON, CO. HAVE YOUR FAVORITE RIVER LASER ENGRAVED on a Handcrafted Beech, Cherry, Curly Maple, Mahogany, or Walnut Wood Fly It is navigable by small craft throughout its course and by larger boats below the Black Canyon. Gunnison River Access Map. A map showing the main segment of the Gunnison River, between Delta and its confluence with the Colorado River, which has been designated as essential habitat for two endangered fish species. Les nombreux réservoirs assurent l'irrigation des terres situées près des rives de la rivière. The Gunnison River Basin is popular for recreational activities such as fishing, rafting, boating, camping, hiking, and rock climbing. Download the best map ever created of the Gunnison River located in central Colorado. Its confluence, formed by the Taylor River and East River, are well known themselves as excellent trout streams. Map of the Gunnison River, its tributaries and major cities. Gunnison River Section 1 - Whitewater to Grand Junction. [31], Organizations throughout Colorado are collaborating on pollution remediation in the Gunnison River in order to increase habitat quality for the razorback sucker and the Colorado pikeminnow. Delta's Confluence Park, 2. the bridge at Escalante, 3. The first non-native to see and record information of the Gunnison River was Juan Maria de Rivera, who came to the banks of the river just below its confluence with the Uncompahgre River in 1761 and 1765. At the outlet of the Black Canyon, it receives the North Fork River, and then downstream, near Delta, Colorado, it is joined by the Uncompahgre River. THE PERFECT GIFT FOR THE FLY FISHING PERSON IN YOUR LIFE INCLUDING YOURSELF! The East Portal Campground map (350 kb) shows both the drive-in and walk-in sites at this first-come first-served campground along the Gunnison River at canyon bottom. Gunnison River. La rivière commence son parcours à l'ouest du Colorado, à l'est du comté de Gunnison, au confluent des rivières Taylor et East. Notices dans des dictionnaires ou encyclopédies généralistes, parc national de Black Canyon of the Gunnison, Déversement d'eaux usées de la mine Gold King de 2015, https://fr.wikipedia.org/w/index.php?title=Gunnison_(rivière)&oldid=170261696, Parc national de Black Canyon of the Gunnison, Page géolocalisable sans coordonnées paramétrées, Article de Wikipédia avec notice d'autorité, Page pointant vers des dictionnaires ou encyclopédies généralistes, Page pointant vers des bases relatives à la géographie, Portail:Lacs et cours d'eau/Articles liés, licence Creative Commons attribution, partage dans les mêmes conditions, comment citer les auteurs et mentionner la licence. Throughout the late 19th and early 20th century the Bureau of Reclamation built multiple dams (Blue Mesa, Morrow Point, and Crystal) and reservoirs (Blue Mesa, Morrow Point, and Crystal). ... #43 Tomichi Creek River Updated: 2020-05-11 Tomichi Creek is a 71.8 mi tributary of the Gunnison River in Gunnison County, Colorado. At the headwaters of the Gunnison River at the confluence of the East and Taylor rivers, Almont is a tiny dot on the map, but two lodge operations here offer al fresco dining and comfortable rooms and cabins. Date of experience: July 2020. It’s a beautiful quiet location! Boating safety tips. Selenium and mercury contribute to concerns about conservation of resident biota. The Gunnison River is threatened by climate change, demand for water resources and ongoing challenges regarding selenium contamination. stuff we are proud of. Gunnison River map with nearby places of interest (Wikipedia articles, food, lodging, parks, etc). Juste en aval de Gunnison, la rivière se jette dans le réservoir Blue Mesa, un lac de 20 km de long formé par le barrage Blue Mesa. Gunnison River Basin: Lower Gunnison Project (LGP) The Lower Gunnison Project is a cooperative-funded series of projects designed to boost agricultural water use efficiency. [26], Mercury in the Gunnison River comes from human activities including surface mining and burning fossil fuels such as coal. If you need fishing tackle, or are looking for a fishing guide or fishing charter please visit Tackle, Guides, Charters [20] Some of the most concentrated tributaries of the Gunnison, namely the Uncompahgre,[21] load large amounts of selenium to the Gunnison River. Includes Personalized Name, Inscription, Artwork. The Lower Gunnison River flows 39 miles from the boat launch at Confluence Park in Delta, to the take-out in Whitewater. From Delta to the dam at Grand Junction is 46 miles of canyon wilderness that is perfect for canoes, kayaks, and rafts. 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