If you like National Parks, there is a great fictional series written by an ex Park Ranger, Nevada Barr. This series is set in different National Parks across the US. Two are set on Isle Royal, I recommend Winter Study. It’s also better to read her books in order.
NATIONAL TROUT MEMORIAL FOUNTAIN Kalkaska, Michigan
Fisherman Shrine, located in the main district of Kalkaska,
Michigan. The fountain, symbolic of Michigan’s Official State Fish, the
Brook Trout, is 18 ft. high and the Brook Trout is 17 ft. long. Fountain
has wash stones from nearby Torch Lake and Michigan Petoskey stones in
the base. The National Trout Festival is held annually, the last weekend
in April, in Kalkaska.