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Wrangell-Saint Elias National Park : ウィキペディア英語版
Wrangell–St. Elias National Park and Preserve

Wrangell–St. Elias National Park and Preserve is a United States national park and national preserve managed by the National Park Service in south central Alaska. The park and preserve was established in 1980 by the Alaska National Interest Lands Conservation Act.〔 This protected area is included in an International Biosphere Reserve and is part of the Kluane/Wrangell-St. Elias/Glacier Bay/Tatshenshini-Alsek UNESCO World Heritage Site. The park and preserve form the largest area managed by the National Park Service in the United States by area with a total of . The park includes a large portion of the Saint Elias Mountains, which include most of the highest peaks in the United States and Canada, yet are within of tidewater, one of the highest reliefs in the world. Wrangell-St. Elias borders on Canada's Kluane National Park and Reserve to the east and approaches the U.S. Glacier Bay National Park to the south. The chief distinction between park and preserve lands is that sport hunting is prohibited in the park and permitted in the preserve. In addition, of the park are designated as the largest single wilderness in the United States.
Wrangell-St. Elias National Monument was initially designated on December 1, 1978, by President Jimmy Carter using the Antiquities Act, pending final legislation to resolve the allotment of public lands in Alaska. Establishment as a national park and preserve followed the passage of the Alaska National Interest Lands Conservation Act in 1980. The park, which is bigger than the country Switzerland, has long, extremely cold winters and a short summer season. It supports a variety of large mammals in an environment defined by relative land elevation. Plate tectonics are responsible for the uplift of the mountain ranges that cross the park. The park's extreme high point is Mount St. Elias at , the second tallest mountain in both the United States and Canada. The park has been shaped by the competing forces of volcanism and glaciation. Mount Wrangell is an active volcano, one of several volcanoes in the western Wrangell Mountains. In the St. Elias Range Mount Churchill has erupted explosively within the past 2,000 years. The park's glacial features include Malaspina Glacier, the largest piedmont glacier in North America, Hubbard Glacier, the longest tidewater glacier in Alaska, and Nabesna Glacier, the world's longest valley glacier. The Bagley Icefield covers much of the park's interior, which includes 60% of the permanently ice-covered terrain in Alaska. At the center of the park, the boomtown of Kennecott exploited one of the world's richest deposits of copper from 1903 to 1938, exposed by and in part incorporated into Kennicott Glacier. The mine buildings and mills, now abandoned, compose a National Historic Landmark district.
==Geography==
Wrangell–St. Elias National Park and Preserve includes the entire Wrangell range, the western portion of the Saint Elias Mountains and the eastern portion of the Chugach Mountains. Lesser ranges in the park or preserve include the Nutzotin Mountains, which are an extension of the Alaska Range, the Granite Range and the Robinson Mountains. Broad rivers run in glacial valleys between the ranges, including the Chitina River, Chisana River and the Nabesna River. All but the Chisana and Nabesna are tributaries to the Copper River, which flows along the western margin of the park and which has its headwaters within the park, at the Copper Glacier. The park includes dozens of glaciers and icefields. The Bagley Icefield covers portions of the St. Elias and Chugach ranges, and Malaspina Glacier covers most of the southeastern extension of the park, with Hubbard Glacier at the park's extreme eastern boundary, the largest tidewater glacier in North America.〔Winkler, p. xi〕 The eastern boundary of the park is Alaska's border with Canada, where it is adjoined by Kluane National Park and Reserve. On the southeast the park is bounded by Yakutat Bay, Tongass National Forest and the Gulf of Alaska. The remainder of the southern boundary follows the crest of the Chugach Mountains, adjoining Chugach National Forest. The western boundary is the Copper River, and the northern boundary follows the Mentasta Mountains and borders Tetlin National Wildlife Refuge.
Mount St. Elias is the second highest mountain in both Canada and the United States. In total nine of the 16 highest peaks on U.S. soil are located in the park, along with North America's largest subpolar icefield, glaciers, rivers, an active volcano, and the historic Kennecott copper mines.〔(【引用サイトリンク】title=Wrangell St. Elias National Park & Preserve )〕 Both the St. Elias and Wrangell ranges have seen volcanic activity. The St. Elias volcanoes are considered extinct, but the some of the volcanoes of the Wrangell Range have been active in Holocene time. Ten separate volcanoes have been documented in the western Wrangell Range, of which Mount Blackburn is the highest and Mount Wrangell is the most recently active.〔Richter ''et al'', pp. 8–10〕 Mount St. Elias is situated on the border of Wrangell–St. Elias National Park and Kluane National Park and Reserve. At , Nearly 66 percent of park and preserve land is designated as wilderness.〔(【引用サイトリンク】title=The National Parks: Index 2009–2011 )〕 The Wrangell–St. Elias Wilderness is the largest designated wilderness in the United States.
The park region is divided between national park lands, which only allow subsistence hunting by local rural residents, and preserve lands, which allow sport hunting by the general public. Preserve lands include the Chitina valley north of the river, two parts of the Copper River valley east of the river, most of the Chisana and Nabesna valleys, and lands along Yakutat Bay.〔
The park is accessible by highway from Anchorage; two rough gravel roads (the McCarthy Road and the Nabesna Road) wind through the park which makes portions of the interior accessible for backcountry camping and hiking. Chartered aircraft also fly into the park.〔 Wrangell–St. Elias received more than 60,000 visitors in 2011. The park area includes a few small settlements. Nabesna and Chisana are in the northern part of the park. Kennicott and McCarthy are relatively close together in the center of the park, with a few smaller settlements nearby and along the McCarthy Road. Chitina serves as a gateway community where the McCarthy Road meets the Edgerton Highway along the Copper River. The McCarthy Road and the Nabesna Road are the only significant roads in the park.〔

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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