For the Mann Lake that was split in two by highway construction, see Mann Lakes.
Mann Lake is the largest of the shallow playa lakes in the northern part of the Alvord Valley in Harney County in the U.S. state of Oregon. The lake is a remnant of a larger Pleistocene lake that covered much of the valley, east of Steens Mountain. Fields–Denio Road runs along the east side of the lake.[2]
Inflow to Mann Lake comes from small, intermittent streams, mainly from Steens Mountain. The lake, which has no outlet, but loses water by evaporation, is hypereutrophic. An influx of cattle waste from nearby rangelands adds to the lake's natural eutrophic state. Large concentrations ofCladophora algae are common.[2]
The Bureau of Land Management operates the Mann Lake Recreation Site, about 100 miles (160 km) southeast of Burns by highway and unpaved road. The site has vault restrooms and boat ramps, but no other amenities. Recreation at or near the site includes fishing, camping, hiking, wildlife viewing, and amateur geology.[4]
Mann Lake, stocked with Lahontan cutthroat trout, has been called "one of the premiere trout fisheries in southeast Oregon".[5] Trout in the lake range in length from 12 to 20 inches (30 to 51 cm).[5] Fishing is restricted to artificial flies and lures.[5]
^Johnson, Daniel M.; Petersen, Richard R.; Lycan, D. Richard; Sweet, James W.; Neuhaus, Mark E., and Schaedel, Andrew L. (1985). Atlas of Oregon Lakes. Corvallis: Oregon State University Press. p. 232. ISBN0-87071-343-4.{{cite book}}: CS1 maint: multiple names: authors list (link)
^ abc"Atlas of Oregon Lakes: Mann Lake (Harney County)". Portland State University. 1985–2012. Retrieved December 20, 2012.
^"Mann Lake". Geographic Names Information System. United States Geological Survey. November 28, 1980. Retrieved December 20, 2012.
^"Alvord Desert/Mann Lake". Bureau of Land Management. Retrieved December 20, 2012.
^ abcdSheehan, Madelynne Diness (April 2005). Fishing in Oregon: The Complete Oregon Fishing Guide (10th ed.). Scappoose, Oregon: Flying Pencil Publications. pp. 282–83. ISBN0-916473-15-5.
^Monroe, Bill (December 3, 2010). . The Oregonian. Oregon Live LLC. Archived from the original on January 4, 2014. Retrieved December 20, 2012.
External linksedit
Media related to Mann Lake at Wikimedia Commons
Mann Lake Campground – Public Lands Information Center
April 12, 2024
mann, lake, that, split, highway, construction, largest, shallow, playa, lakes, northern, part, alvord, valley, harney, county, state, oregon, lake, remnant, larger, pleistocene, lake, that, covered, much, valley, east, steens, mountain, fields, denio, road, r. For the Mann Lake that was split in two by highway construction see Mann Lakes Mann Lake is the largest of the shallow playa lakes in the northern part of the Alvord Valley in Harney County in the U S state of Oregon The lake is a remnant of a larger Pleistocene lake that covered much of the valley east of Steens Mountain Fields Denio Road runs along the east side of the lake 2 Mann LakeMann Lake and Steens MountainMann LakeShow map of OregonMann LakeShow map of the United StatesLocationHarney County OregonCoordinates42 46 20 N 118 26 49 W 42 77222 N 118 44694 W 42 77222 118 44694TypeNatural hypereutrophicPrimary inflowsIntermittent streamsPrimary outflowsEvaporationCatchment area41 square miles 110 km2 Basin countriesUnited StatesSurface area276 acres 112 ha Average depth6 feet 1 8 m Max depth14 feet 4 3 m Water volume1 600 acre feet 2 000 000 m3 Shore length12 4 miles 3 9 km Surface elevation4 173 feet 1 272 m SettlementsBurns FieldsReferences 1 2 3 1 Shore length is not a well defined measure Inflow to Mann Lake comes from small intermittent streams mainly from Steens Mountain The lake which has no outlet but loses water by evaporation is hypereutrophic An influx of cattle waste from nearby rangelands adds to the lake s natural eutrophic state Large concentrations ofCladophora algae are common 2 The Bureau of Land Management operates the Mann Lake Recreation Site about 100 miles 160 km southeast of Burns by highway and unpaved road The site has vault restrooms and boat ramps but no other amenities Recreation at or near the site includes fishing camping hiking wildlife viewing and amateur geology 4 Mann Lake stocked with Lahontan cutthroat trout has been called one of the premiere trout fisheries in southeast Oregon 5 Trout in the lake range in length from 12 to 20 inches 30 to 51 cm 5 Fishing is restricted to artificial flies and lures 5 A large population of goldfish introduced illegally have at times multiplied in Mann Lake and competed for food with the smaller trout 5 In 2010 the Oregon Department of Fish and Wildlife treated the lake with rotenone a piscicide killing around 200 000 goldfish and fathead minnows while sparing nearly all the trout 6 See also editList of lakes in OregonReferences edit Johnson Daniel M Petersen Richard R Lycan D Richard Sweet James W Neuhaus Mark E and Schaedel Andrew L 1985 Atlas of Oregon Lakes Corvallis Oregon State University Press p 232 ISBN 0 87071 343 4 a href Template Cite book html title Template Cite book cite book a CS1 maint multiple names authors list link a b c Atlas of Oregon Lakes Mann Lake Harney County Portland State University 1985 2012 Retrieved December 20 2012 Mann Lake Geographic Names Information System United States Geological Survey November 28 1980 Retrieved December 20 2012 Alvord Desert Mann Lake Bureau of Land Management Retrieved December 20 2012 a b c d Sheehan Madelynne Diness April 2005 Fishing in Oregon The Complete Oregon Fishing Guide 10th ed Scappoose Oregon Flying Pencil Publications pp 282 83 ISBN 0 916473 15 5 Monroe Bill December 3 2010 Mann Lake Gets a Second Round of Rotenone for Cutthroat Restoration The Oregonian Oregon Live LLC Archived from the original on January 4 2014 Retrieved December 20 2012 External links edit nbsp Media related to Mann Lake at Wikimedia Commons Mann Lake Campground Public Lands Information Center Retrieved from https en wikipedia org w index php title Mann Lake amp oldid 1217808630, wikipedia, wiki, book, books, library,
