アメリカ内務省のインスタグラム(usinterior) - 10月9日 00時21分

Voyageurs National Park in #Minnesota is a wandering maze of interconnected waterways and deep forests. A place of transition in the heart of the continent, this unique landscape was formed by ancient earthquakes and volcanoes and more recently, glaciers. The most recent period of glaciation ended just over 10,000 years ago, exposing ancient Precambrian rocks. The forests that now cover the higher grounds of the park exist on a thin layer of soil that has formed in the comparatively short period of time since the last glacier receded. They look especially nice wearing their fall colors, too. Photo @VoyageursNPS by Tom Gable, #NationalPark Service. #fall #Voyageurs #usinterior

[BIHAKUEN]UVシールド(UVShield)

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• VoyageursNPS