| 词条 | Elk Mountains (South Dakota) | |||
| 释义 |
|name = Elk Mountains |other_name = Elk Mountain Range[1] |photo = File:Black Hills Desert.JPG |photo_alt = Photo of Elk Mountains western slope from the prairie near Dewey, South Dakota |photo_caption = The Elk Mountains seen from the dry prairie near Dewey. |country_type = |country = United States |region_type = States |region = South Dakota |region1 = Wyoming |border = |border1 = |biome = |topo_map = |topo_maker = |highest = Elk Mountain |highest_location = |elevation_m = 1726 |elevation_system = |elevation_note = at the Elk Mountain Lookout Tower[2] |coordinates_note = |coordinates ={{coord|43.7241438 |N|104.0413212|W|format=dms|display=inline,title}} |length_km = 55 |width_km = 6 |area_km2 = |length_orientation = NW-SE |width_orientation = |length_note = |width_note = |area_note = |parent = Black Hills |range_coordinates = |range_coordinates_note = |formed_by = |geology = Inyan Kara rock |period = Early Cretaceous |orogeny = |map = USA South Dakota |map_alt = Map of South Dakota with Elk Mountains marked |map_caption = Location of the Elk Mountains in South Dakota |label = Elk Mountains |map_relief = |relief = }} The Elk Mountains are a small range of mountains in western South Dakota, forming the southwest portion of the Black Hills as part of its west-dipping monocline.[3] They are geologically distinct from the Black Hills, on the other side of a "racetrack" region of red stone. The ridge of the Elk Mountains is formed of harder sandstones.[4] The east face of the Elk Mountains is a {{convert|300|to|800|ft|m|adj=on}} high escarpment, but the west portion falls slowly and features many canyons. The mountains are about {{convert|3800|ft|m}} higher than the low prairie hills to their west.[3] Most of the Elk Mountains were protected in the Harney National Forest until 1954, when this protected area joined the Black Hills National Forest. Today the large South Dakota portion of the mountain range is in the Hell Canyon District of the Black Hills National Forest, while the much smaller Wyoming portion lies in the Bearlodge District.[5] The Elk Mountains are one of three mountain ranges that comprise the Black Hills region and national forest, including the Black Hills itself and Wyoming's Bear Lodge Mountains. Elk Mountain is the highest point of the range and has a lookout tower on its summit. Other peaks include Pilger Mountain[6] and Sullivan Peak.[3] Few people live in or near the Elk Mountains. The closest town is Edgemont, South Dakota, to the south. Tiny unincorporated Dewey and ghost town Burdock lie to the west. Ten miles to the northwest is Newcastle, Wyoming. HabitatPinus ponderosa trees are predominant with nearly complete undergrowth of Carex heliophila.[7]GalleryReferences1. ^{{gnis|1261633|Elk Mountains}} {{commons cat}}{{Mountains of South Dakota}}2. ^{{gnis|1261634|Elk Mountain Lookout Tower}} 3. ^1 2 {{cite journal| last1 = Brobst| first1 = Donald A.| date = 1961| title = Geology of the Dewey Quadrangle Wyoming-South Dakota: Geology of Uranium Deposits in Southern Black Hills| number = Geological Survey Bulletin 1063-B| url = http://pubs.usgs.gov/bul/1063b/report.pdf| publisher = United States Atomic Energy Commission| location = | page = 13| accessdate = August 9, 2014|format = pdf}} 4. ^{{cite book|last=Rogers|first=Hiram|title=Exploring the Black Hills and Badlands|url=https://books.google.com/books?id=KMHNkVk1FvQC&pg=PA13|accessdate=29 July 2014|year=1999|publisher=Big Earth Publishing|isbn=978-1-55566-240-0|page=13}} 5. ^{{cite map |url=http://www.fs.usda.gov/Internet/FSE_DOCUMENTS/stelprdb5228288.pdf |title=Black Hills National Forest | publisher=US Forest Service |type=PDF |accessdate=August 23, 2014}} 6. ^{{USBill|109|S|1897}} 7. ^{{cite journal| last1 = Hoffman| first1 = George R.| last2 = Alexander| first2 = Robert R.| date = June 1987| title = Forest Vegetation of the Black Hills National Forest of South Dakota and Wyoming: A Habitat Type Classification| number = RM-276| url = http://www.fs.fed.us/rm/pubs/rmrs_gtr292/rm_rp276.pdf| publisher = United States Forest Service Rocky Mountain Range and Forest Experiment Station| location = Fort Collins, Colorado| page = 15| accessdate = July 30, 2014|format = pdf}} 5 : Black Hills|Mountain ranges of South Dakota|Mountain ranges of Wyoming|Landforms of Custer County, South Dakota|Landforms of Fall River County, South Dakota |
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