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・ Three Sisters (tomato)
・ Three Sisters (TV series)
・ Three Sisters Bridge (District of Columbia)
・ Three Sisters Cones
・ Three Sisters Important Bird Area
・ Three Sisters Islands
・ Three Sisters Islands (New York)
・ Three Sisters Lakes Provincial Park
・ Three Sisters of Nauset
・ Three Sisters of the Moors
・ Three Sisters Point
・ Three Sisters Range
・ Three Sisters Recreation Area
・ Three Sisters Springs (Florida)
・ Three Sisters Tavern
Three Sisters Wilderness
・ Three Sisters' Story
・ Three Six Zero Group
・ Three Sixty
・ Three Sixty Residences
・ Three Skeleton Key
・ Three Slice Nunatak
・ Three Smart Boys
・ Three Smart Girls
・ Three Smart Girls Grow Up
・ Three Smart Guys
・ Three Smart Saps
・ Three Smiths Statue
・ Three Snakes and One Charm
・ Three Soldiers


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Three Sisters Wilderness : ウィキペディア英語版
Three Sisters Wilderness

The Three Sisters Wilderness is a wilderness area in the Cascade Range, within the Willamette and Deschutes National Forests in Oregon. It comprises , making it the second largest wilderness area in Oregon, after the Eagle Cap Wilderness. It was established by the United States Congress in 1964 and is named for the Three Sisters, three volcanoes. The wilderness boundary encloses the Three Sisters as well as Broken Top, which is southeast of South Sister.〔(Three Sisters Wilderness ) - Wilderness.net〕
Oregon Route 242 separates the Three Sisters Wilderness from the Mount Washington Wilderness to the north, while the Waldo Lake Wilderness shares the southern boundary.〔
==Geology==
Many types of landforms make up the wilderness area, but the most common are volcanic features, the most notable being the Cascades which are stratovolcanoes having formed around 1.6 million years ago.〔(【引用サイトリンク】title=Geologic Provinces of the United States: Pacific )〕 Numerous cinder cones have formed on their flanks as well as many lava flows that contain hundreds of lava tubes.

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「Three Sisters Wilderness」の詳細全文を読む



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