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Larch Mountain is an extinct volcano near Portland, Oregon. The name is misleading, as no western larch (a large deciduous, coniferous tree) can be found there. It received that name when early lumbermen sold the Noble Fir wood as larch. The peak can be reached between May and November on paved Larch Mountain Road, east of Corbett, Oregon, although the road is closed during the winter and spring months,.〔(【引用サイトリンク】title=Larch Mountain Picnic Area )〕 From the north side of the large summit parking lot, hiking trails lead around the volcano's caldera to Sherrard Point with an outstanding view of nearby Mount Hood, Mount Adams, Mount Jefferson, Mount Rainier near Seattle and Mount St. Helens, an active volcano. Distance plaques are provided, showing the distance to said volcanoes.〔 Another trail leads north to the foot of Multnomah Falls near the Columbia River, visiting many lesser waterfalls along the way, many of which emanate from the mountain. Larch Mountain is the remnant of an ancient shield volcano, with broad slopes covering tens of square kilometers. It is currently the tallest peak in the Boring Lava Field, a volcanic field active during the Plio-Pleistocene time frame. The volcano is composed mainly of andesites, in contrast to the rest of the region, which is composed of basalt. Sherrard Point at the pinnacle is the eroded remains of the original volcanic plug. ==Gallery== File:Larch Mountain.JPG|View from the summit. File:Creek on Larch Mountain-Oregon.jpg|A creek in Larch Mountain forest. File:Creek and old-growth forest-Larch Mountain.jpg|Old-growth forest File:Larch_Mountain_Oregon_Trail_Plaque.jpg|Larch Mountain Trail plaque 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「Larch Mountain (Multnomah County, Oregon)」の詳細全文を読む スポンサード リンク
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