Though it"s December, it isn"t cold and snowy everywhere in North America. Here, near Tucson, Arizona, the Sonoran Desert stays warm year-round. In this photo, we"re looking at a "sky island"—an isolated, high-elevation woodland surrounded by radically different lowland environments. In this case, the desert land at the base of the mountain is peppered with saguaros—a stately cactus recognized for its long arms. The snow-capped Santa Catalina Mountains in the distance are part of the Madrean Sky Islands and are home to Mount Lemmon Ski Valley, which is the southernmost ski destination in the US. The ski area covers the slopes of Mount Lemmon, which reaches an elevation of about 9,100 feet at the summit and can receive around 180 inches of snow annually.
Sky island views
Today in History
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Milwaukee City Hall, Wisconsin
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Ljubljana, Slovenia
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Lunar eclipse
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Happy Arbor Day!
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Marine Day in Japan
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‘The memory of Abraham Lincoln is enshrined forever’
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Mildred B. Cooper Memorial Chapel in Arkansas
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An island hopper s paradise
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Bridges to the past
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Sequential images of a total solar eclipse
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World Meteorological Day
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A house of grand scale(s)
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World Space Week begins
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Instant romance
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Lake Misurina, Dolomites, Italy
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Great hornbill, Thailand
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Arbor Day
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Fall comes to the Last Frontier
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International Mountain Day
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Autumn comes to Old Town
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Keyholes to the kingdom
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Defying gravity on a swing ride
Bing Wallpaper Gallery

