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David Y. Allen: Bristlecone Pine
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David Y. Allen: Bristlecone Pine
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David Y. Allen: White Mountain
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David Y. Allen: Bristlecone Pine
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David Y. Allen: Bristlecone Pines
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David Y. Allen: View of Sierra Nevada Mountains
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David Y. Allen: Bristlecone Pine
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David Y. Allen: Sierras Seen from White Mountains