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Wenaha–Tucannon Wilderness : ウィキペディア英語版 | Wenaha–Tucannon Wilderness
The Wenaha–Tucannon Wilderness is a federally designated wilderness area in the Blue Mountains of northeastern Oregon, and southeastern Washington, United States.〔(【引用サイトリンク】title=Umatilla National Forest: Wilderness )〕 It was created by the Endangered American Wilderness Act of 1978 and encompasses in the Umatilla National Forest — in Oregon and in Washington.〔〔(【引用サイトリンク】 url=http://www.gorp.com/parks-guide/travel-ta-umatilla-national-forest-pendleton-sidwcmdev_069292.html )〕 ==Topography== The Wehana–Tucannon Wilderness consists primarily of rugged basaltic ridges separated by deep canyons with steep slopes. The area's precipitation drains south into the Wenaha River, east to the Grande Ronde River and Asotin Creek, and north into the Tucannon River, each part of the Snake River watershed. To the west drainages are the Touchet River and Mill Creek, both leading to the Walla Walla River, and the Umatilla River, a direct tributary of the Columbia River. The Wilderness ranges in elevation from on the Wild and Scenic Wenaha River to atop Oregon Butte at in Washington.〔(【引用サイトリンク】 url=http://www.wilderness.net/index.cfm?fuse=NWPS&sec=wildView&wname=Wenaha-Tucannon )〕
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Wenaha–Tucannon Wilderness」の詳細全文を読む
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