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
More Desktop Wallpapers:
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Winter solstice
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Kangaroo family for National Hugging Day
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Palmyra Atoll National Wildlife Refuge
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Wanderin Wawayanda
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Floating market, Kaptai Lake, Bangladesh
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Bioluminescence at Trwyn Du Lighthouse in Wales
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Grand Canyon National Park turns 105
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Gespensterwald, Nienhagen, Germany
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Kelp buddies
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Tigh Mor Trossachs on Loch Achray, Scotland
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Haven t you herd? It s World Elephant Day!
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Night view of the RMS Queen Mary, Long Beach, California
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Happy New Year!
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In search of roadside attractions on ‘America’s Highway’
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Detroit Industry Murals by Diego Rivera
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Juneteenth
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The Christmas Bird Count begins
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Regional Park of Migliarino, San Rossore, Massaciuccoli, Italy
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Don t forget—it’s World Elephant Day
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Talk like a pirate—or walk the plank
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International Geodiversity Day
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Happy Syttende Mai!
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Spring comes to the Palouse
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Wake up, it s Darwin Day
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Vieste, Apulia, Italy
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Thorrablot: The Icelandic midwinter festival
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Surf s up—Down Under
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Beaver achievers
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Mont-Saint-Michel
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Cecil Brewer Staircase, London
Bing Wallpaper Gallery


