| 词条 | Agate Lake |
| 释义 |
| name = Agate Lake | image = Agate Lake.jpg | caption = Agate Lake from Roxy Ann Peak | image_bathymetry = Agate Lake Map.png | caption_bathymetry = A map of Agate Lake | location = Jackson County, Oregon | coords = {{coord|42|24|39.05|N|122|46|13.65|W|type:waterbody_region:US|display=inline,title}} | type = Reservoir | inflow = Dry Creek | outflow = Dry Creek | catchment = | basin_countries = United States | length = | width = | area = {{convert|216|acre|km2}} | depth = | max-depth = | volume = {{convert|4782|acre.ft|m3}} | residence_time = | shore = {{convert|3|mi|km}} | elevation = {{convert|1510|ft|m}} | islands = | cities = }}Agate Lake is a reservoir located {{convert|1510|ft|m}} above sea level in Jackson County, Oregon, United States. It is {{convert|13|mi|km}} northeast of Medford,[1] just north of Roxy Ann Peak. The lake is formed by the {{convert|86|ft|adj=on}} tall Agate Dam, which impounds Dry Creek, in the Rogue River watershed. HistoryConstruction of Agate Dam was authorized in 1962, started in 1965, and completed in 1966.[1][2] The {{convert|86|ft|m|adj=on}} tall earthfill embankment dam was completed by the Talent Division of the Rogue River Basin Project, impounding Dry Creek. Two canals were also built, diverting water from nearby Antelope Creek and Little Butte Creek.[1] A boat ramp, four pit toilets, a picnic area, and a parking lot were also built. All but the boat ramp and parking lot have been removed due to excessive vandalism. There are three parking areas one on the north west side and two on the east side of the lake .[2] StatisticsAgate Lake receives approximately {{convert|23|in|mm}} of precipitation annually. Temperatures average from highs of {{convert|89|F|C}} in the summer to lows of {{convert|22|F|C}} in the winter. The average wind speed in the area is {{convert|10|to|15|mph|km/h}}.[2] Agate Lake has an average surface area of {{convert|216|acre|km2}}, and an average volume of {{convert|4782|acre.ft|m3}}. It is located {{convert|1510|ft|m}} above sea level, although the water level fluctuates as much as {{convert|25|ft|m}} throughout the year. It has approximately {{convert|3|mi|km}} of shoreline. The spillway has a capacity of {{convert|3300|ft3/s|m3/s}}.[2] Agate Dam is {{convert|86|ft|m}} tall, {{convert|25|ft|m}} wide, and {{convert|3800|ft|m}} long.[2] Flora and faunaDry Creek was intermittent prior to the construction of Agate Dam, and did not have any significant fish population.[1] Upstream (to the south of Agate Lake) trees such as willows, cottonwoods, and alders grow in Dry Creek's riparian zone. To the north of Agate Lake blackberries, willows, alders, madrones, white oaks, and ponderosa pine inhabit this zone.[2] Vegetation on the west side of the lake is mostly oak savanna, with many white oak and madrone trees. The most commons shrubs include buckbrush and occasionally poison oak. The south side consists of mainly grassland. Invasive species such as star thistle, cheat grass, and teasel have invaded these areas. To the northwest is more grassland, featuring vernal pools in the spring. When filled, the pools are a known habitat for a threatened species of fairy shrimp, (branchinecta lynchi), which can be found in the winter and early spring. The rare big-flowered woolly meadowfoam can also be found in these pools. They are endemic to the Agate Desert region.[2]Black-tailed deer inhabit the area in the spring, summer, and fall. Over 190 species of birds have been spotted around the lake.Fish such as largemouth bass, smallmouth bass, bluegill, catfish, and crappie live in the lake.[2] RecreationOnly non motorized and electric motor boats are allowed on the Lake. Swimming, angling, rock hunting and picnicking are also popular activities.[1] In the late summer and early fall when the lake recedes you can find agates and petrified wood. The Jackson County Parks Department estimates that approximately 5,000 people visit the lake annually.[2] See also
References1. ^1 2 3 4 {{cite web | url = http://www.usbr.gov/projects/Project.jsp?proj_Name=Rogue%20River%20Basin%20Project&pageType=ProjectPage | title = Rogue River Basin Project | publisher = United States Bureau of Reclamation | accessdate = August 10, 2009}} 2. ^1 2 3 4 5 6 7 8 {{cite web |url=http://www.usbr.gov/pn/programs/rmp/agate/rmp.pdf |format=PDF |title=Agate Lake Resource Management Plan |publisher=United States Bureau of Reclamation |accessdate=August 10, 2009 }}{{dead link|date=October 2016 |bot=InternetArchiveBot |fix-attempted=yes }} External links{{Commons category|Agate Lake}}
8 : Reservoirs in Oregon|Lakes of Jackson County, Oregon|Buildings and structures in Jackson County, Oregon|Protected areas of Jackson County, Oregon|Dams in Oregon|United States Bureau of Reclamation dams|Dams completed in 1966|1966 establishments in Oregon |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。