アメリカ内務省のインスタグラム(usinterior) - 3月11日 01時30分

Many visitors to #GreatSandDunes National Park and Preserve (@greatsanddunesnps) are mystified: Why is there a Sahara-like dunefield below alpine peaks that reach over 13,000 feet in #Colorado? The answer is complex, but the two essential elements are here: A vast, arid, closed basin that lakes once covered and a mountain barrier with a low curve to funnel winds into this natural pocket. Photo by Patrick Myers, #NationalPark Service. #usinterior #findyourpark

[BIHAKUEN]UVシールド(UVShield)

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