アメリカ内務省のインスタグラム(usinterior) - 2月11日 01時25分

Located in northern #California, #LassenVolcanic National Park is a true winter wonderland. Silent, snow-covered #volcanoes hide magma beneath their calm surfaces -- clues to @lassennps’s three million years of volcanic activity show up in steam vents, boiling springs and bubbling mudpots. Even in winter, these hydrothermal (“hot water”) features melt nearby #snow and ice. Photo by Mike Matiasek, #NationalPark Service. #usinterior #findyourpark

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