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・ Mount Berry
・ Mount Berry (Antarctica)
・ Mount Baker, Seattle
・ Mount Baker-Snoqualmie National Forest
・ Mount Bakker
・ Mount Balatukan
・ Mount Balbi
・ Mount Balch
・ Mount Balchen
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・ Mount Baldy
・ Mount Baldy (Alberta)
・ Mount Baldy (Arizona)
・ Mount Baldy (Nevada)
・ Mount Baldy (Polk County, Oregon)
Mount Baldy (sand dune)
・ Mount Baldy School District
・ Mount Baldy Ski Area
・ Mount Baldy Ski Lifts
・ Mount Baldy Zen Center
・ Mount Baldy, California
・ Mount Baleen
・ Mount Balfour
・ Mount Ball
・ Mount Ballard
・ Mount Ballou
・ Mount Balungao
・ Mount Banahaw
・ Mount Banang
・ Mount Banck


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Mount Baldy (sand dune) : ウィキペディア英語版
Mount Baldy (sand dune)

Mount Baldy is a sand dune located in the Indiana Dunes National Lakeshore. It is on the southern shore of Lake Michigan and is 126 feet tall. It is a wandering dune that moves or shifts every year, and is called a "living dune."

Mount Baldy is accessible from U.S. Route 12 (also known as Dunes Highway) between the town of Pines and the western border of Michigan City, Indiana. It is a tourist attraction locally and regionally, drawing weekend and summer visitors from Chicago. Prior to the dune's closure, on a clear day one could see Chicago's skyline from its top. North of Mount Baldy is a swimmable beach which is also part of the Indiana Dunes National Lakeshore.
==Erosion==
Due to its popularity with visitors the marram grass which had stabilized the dune was largely destroyed, and the dune has begun advanced southwards, threatening to overrun its parking lot. Accordingly, the National Park Service has rerouted trails and planted grass in hopes of slowing the dune. In 2013, strange sinkholes began appearing in the sand, one of which swallowed a small child. It took three hours for the boy to be rescued from the deep pit. The geological process that is producing the sinkholes is under study, but appears to be related to the burial and decomposition of fungus-ridden black oak trees. The dune remains closed to visitors.

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 Baldy (sand dune)」の詳細全文を読む



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