A University of Idaho Coeur d'Alene research team runs preliminary checks before lowering a submersible drone into Lake Coeur d'Alene near Stevens Point. This fall, the drone will test oxygen and temperature levels, water clarity and record lake bed video. (LOREN BENOIT/Press
July 27, 2018
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July 27, 2018 1 a.m.
Trial by water
By DEVIN WEEKS