Angler discovers rare winter algae bloom
March 25, 2021
GILLETTE — Paul Langevin first noticed the unusual substance beneath the ice on Keyhole Reservoir in December.
As he’s done for decades, Langevin headed out on the frozen lake to bore a hole and drop a line.
But when he broke through the thick layer of ice, it wasn’t just water that sprang up through the hole.
“It was just so abnormal,” Langevin said about the green substance that emerged from his ice fishing hole. “It was so out of place.”
The 70-year-old Pine Haven resident said he and other ice fishermen who frequented Keyhole State Park this past winter have consistently s...
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