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The Skystone is an andesite glacial erratic boulder in Bonney Lake, Washington. The stone may have astronomical significance to the Puyallup tribe of Native Americans. It was called by an archaeastronomer "the new world Stonehenge",〔 with pits pounded into its surface that align with the sun's position on the solstices. The stone is about one mile south of the former Naches Trail, and was apparently rediscovered when a suburban housing development was begun in 1999.〔 It is listed and preserved as an archaeological site by the Washington State Office of Archaeology and Historic Preservation.〔〔〔〔 The stone's height and width are .〔〔 ==References== 〕 }} 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「Skystone」の詳細全文を読む スポンサード リンク
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