Antelope Island, Great Salt Lake, Utah : 無料・フリー素材/写真
Antelope Island, Great Salt Lake, Utah / Ken Lund
| ライセンス | クリエイティブ・コモンズ 表示-継承 2.1 |
|---|---|
| 説明 | Antelope Island, with an area of 42 square miles (109 km2), is the largest island of 10 islands located within the Great Salt Lake, Utah, United States. The island lies in the southeastern portion of the lake, near Salt Lake City and Davis County, and becomes a peninsula when the lake is at extremely low levels.The first known non-natives to visit the island, "we rode on horseback over salt from the thickness of a wafer to twelve inches", were John C. Fremont and Kit Carson during exploration of the Great Salt Lake in 1845, who "were informed by the Indians that there was an abundance of fresh water on it and plenty of antelope". It is said they shot a pronghorn antelope on the island and in gratitude for the meat they named it Antelope Island.Antelope Island has natural scenic beauty and holds populations of pronghorn, bighorn sheep, American bison, porcupine, badger, coyote, bobcat, and millions of waterfowl. The bison were introduced to the island in 1893, and Antelope Island Bison Herd has proven to be a valuable genetic pool for bison breeding and conservation purposes. The bison do well because much of the island is covered by dry, native grassland.The geology of Antelope Island consists mostly of alluvial plains with prairie grassland on the north, east and south of the island, along with a mountainous central area of older Precambrian metamorphic and igneous rocks and late Precambrian to Paleozoic sedimentary rocks, covered by a thin layer of Quaternary lake deposits, colluvium and alluvium. The Precambrian deposits on Antelope Island are some of the oldest rocks in the United States, older even than the Precambrian rocks at the bottom of the Grand Canyon.Antelope Island State Park is a Utah State Park and the entire island is included in the park. Originally, Antelope Island was used as a ranch for cattle and sheep, starting from the earliest days of the arrival of the Mormon pioneers into the Salt Lake Valley. The Church of Jesus Christ of Latter-day Saints (Mormons) controlled the ranch on the island from 1848 until approximately 1870. The island is accessible via a 7 miles (11 km) causeway from Syracuse in Davis County. The island's shore (all but west side of the island) is mostly flat with beaches and plains to the base of the mountains on the island. These steep mountains are visible from most of the northern Wasatch Front, reaching a maximum elevation of 6,596 feet (2,010 m), which is about 2,500 feet (762 m) above the level of the lake.On the east side of the island, 11 miles (18 km) south of the causeway, is the Fielding Garr Ranch. Here is the oldest (Anglo) building in Utah that is still on its original foundation. It is managed as a historical 'demonstration' ranch. Classes are sometimes taught at the ranch and tours are available. During the warmer parts of the year horses are also available for hourly rental at the ranch, and a tour guide can take riders out to observe the bison. The southern part of the road to the Fielding Garr Ranch is controlled by a gate which is only open from 9 AM to 6 PM on most days.Antelope Island is surrounded by the Great Salt Lake. The lake is extremely salty, with salt levels reaching as much as 25% of the lake, by volume, so Great Salt Lake does not support fish, but does support large numbers of Brine Shrimp which provide food for visiting waterfowl. Because of the high salinity, the island is mostly without readily available fresh water.en.wikipedia.org/wiki/Antelope_Islanden.wikipedia.org/wiki/Wikipedia:Text_of_Creative_Commons_... |
| 撮影日 | 2015-09-24 06:58:50 |
| 撮影者 | Ken Lund , Reno, Nevada, USA |
| タグ | |
| 撮影地 | Utah, United States 地図 |
| カメラ | Canon PowerShot SX280 HS , Canon |
| 露出 | 0.004 sec (1/250) |
| 開放F値 | f/4.0 |
| 焦点距離 | 16393.44262 dpi |