1988 Press Photo University of Wisconsin-Milwaukee lab technician Rob Lauer

Lab technician Rob Lauer (left) helped biologist Jerry Kaster show how core samples were taken from a lake. Imagine yourself in Yellowstone National park, staring at a bubbling cone of sand and water 300 feet below the surface of a lake. Friday night, at

Photo is dated 1988.

Photo measures 5.25 x 10.25 inches.

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