Chad Lewis and Terry Fisk are known for their “Road Guide” series on haunted places in Illinois, Iowa, Florida, Minnesota, South Dakota, and Wisconsin, which I consider to be excellent resources. Published by On the Road Publications in 2011, The Wisconsin Road Guide to Mysterious Creatures is a solo project by Chad Lewis.
It shares many of the same features as previous Road Guides, but focuses entirely on crypto and mythological creatures. This makes the book particularly interesting, since the prospects for running into an unknown creature are slightly better than an ethereal specter.
Although organized by case number and not in any explicit order, the chapters in The Wisconsin Road Guide to Mysterious Creatures do seem to be arranged by type of creature. The first three chapters are devoted to evil beings, the next seven to aquatic monsters, then aliens, werewolves, gnomes and halflings, bigfoot, and finally, a vampire.
It seems Wisconsin has its share of nearly every type of mythological creature, some of which are clearly influenced by the heavy concentration of residents with German and Scandinavian heritage. Each chapter includes directions, a summary of the lore, a short history, and an investigation log explaining what the author encountered when he visited. There is eyewitness testimony when available, and even sketches and photos.