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Williams Loop : ウィキペディア英語版 | Williams Loop
The Williams Loop is a rail spiral located on the Union Pacific Railroad's (originally Western Pacific Railroad's) Feather River Route through the Sierra Nevada mountains in northeastern California, connecting the Sacramento Valley to Salt Lake City via the Feather River canyons. Located approximately five miles east of East Quincy, the loop is used to gain elevation on the WP's eastward climb to its summit at Beckwourth Pass while maintaining the railroad's overall 1.0 percent (compensated) grade, the least steep of any grade on a transcontinental railroad. More specifically, the loop (together with the nearby Spring Garden Tunnel) helps the railroad to surmount the divide between the East Branch North Fork Feather River and the Middle Fork Feather River. ==Railfanning== The Williams Loop is part of Plumas County's "7 Wonders of the Railroad World" and access is described in its travel guide.〔(【引用サイトリンク】 Tour 7 - Wonders of the Railroad World )〕〔(【引用サイトリンク】 7 Wonders of the Railroad World )〕
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「Williams Loop」の詳細全文を読む
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