PLL blog 10 photo 3 (hb6158)

Jeff Moersch squints at the heat maps of the Laguna Negra terrain produced by his thermal imager, carefully jotting down in his field notebook information about where the imager is pointed. Credit: Henry Bortman

Jeff Moersch squints at the heat maps of the Laguna Negra terrain produced by his thermal imager, carefully jotting down in his field notebook information about where the imager is pointed. Credit: Henry Bortman

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