Lake, brown and brook trout are found in the 45 degree Kitch-iti-kipi spring at Palms Book State Park in Manistique, Mich. The water moves through porous sandstone and is discharged into a pond at 10,000 gallons a minute. Visitors can watch the roiling of the clean sands some 40 feet below from a viewing raft.
“It’s a fascinating ever-changing floor,” said Peggy Riemer, who captured these images last October. She recently posted similar images and information on NASA’s Earth Science Picture of the Day.
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