|
Mount Jefferson is a stratovolcano in the Cascade Volcanic Arc, part of the Cascade Range, and is the second highest mountain in Oregon. It is situated in the far northeastern corner of Linn County on the Jefferson County line, with the lower reaches extending northward into southeastern Marion County. The mountain, about east of Corvallis, is in a rugged wilderness and is thus one of the hardest volcanoes to reach in the Cascades, though USFS Road 1044 does come within of the summit. Jefferson's craggy, deeply glacially scarred appearance is especially beautiful and photogenic, and the peak has frequently served as a backdrop for automobile and alcohol advertisements in the United States. ==History== Mount Jefferson (originally called Mount Vancouver by the British) was named in honor of US President Thomas Jefferson by the Lewis and Clark Expedition.〔 〕 This was the only High Cascade mountain they named. The expedition, which was sponsored by President Jefferson, first saw the peak from the mouth of the Willamette River in March 1806.〔 A Native American name for the mountain is Seekseekqua.〔 〕 The first ascent was probably accomplished by E. C Cross and Ray L. Farmer on 12 August 1888 by way of the south ridge. George J. Pearce, who accompanied Cross and Farmer on the expedition, wrote an account of the climb for the ''Oregonian'' newspaper on 22 August 1900. The first climber to reach the summit via the north face was S. S. Mohler in 1903.〔McArthur, Lewis A., and Lewis L. McArthur, Oregon Geographic Names (7th edition), Oregon Historical Society Press, Portland, Oregon, 2003.〕 One of the most complete studies of the volcano was compiled in a large report written in the 1920s by former professor of geology at the University of Oregon, Edwin T. Hodge. Probably due to its remoteness there has been little work done on a comprehensive study of the mountain since then. The most notable exception was a 1974 study of the volcano's glacial and volcanic history carried out by Kenneth G. Sutton. 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「Mount Jefferson (Oregon)」の詳細全文を読む スポンサード リンク
|