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Landscape near Tucson, AZ. Photo courtesy of Jim Gilbert. March 2014.

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Landscape near Tucson, AZ. Photo courtesy of Jim Gilbert. March 2014.

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Near Tucson, AZ. Photo courtesy of Jim Gilbert. March 2014.

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Near Tucson, AZ. Photo courtesy of Jim Gilbert. March 2014.

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Landscape near Tucson, AZ. Photo courtesy of Jim Gilbert. March 2014.

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Kitt Peak Observatory near Tucson, AZ. Photo courtesy of Jim Gilbert. March 2014.

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Near Tucson, AZ. Photo courtesy of Jim Gilbert. March 2014.

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Landscape near Tucson, AZ. Photo courtesy of Jim Gilbert. March 2014.

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Landscape near Tucson, AZ. Photo courtesy of Jim Gilbert. March 2014.

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Landscape near Tucson, AZ. Photo courtesy of Jim Gilbert. March 2014.

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Landscape near Tucson, AZ. Photo courtesy of Jim Gilbert. March 2014.

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Landscape near Tucson, AZ. Photo courtesy of Jim Gilbert. March 2014.

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Landscape near Tucson, AZ. Photo courtesy of Jim Gilbert. March 2014.

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Prickly Pear cactus near Tucson, AZ. Photo courtesy of Jim Gilbert. March 2014.

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Landscape near Tucson, AZ. Photo courtesy of Jim Gilbert. March 2014.

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Landscape near Tucson, AZ. Photo courtesy of Jim Gilbert. March 2014.

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Landscape near Tucson, AZ. Photo courtesy of Jim Gilbert. March 2014.

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Landscape near Tucson, AZ. Photo courtesy of Jim Gilbert. March 2014.

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Landscape near Tucson, AZ. Photo courtesy of Jim Gilbert. March 2014.

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Landscape near Tucson, AZ. Photo courtesy of Jim Gilbert. March 2014.