Nahganne: Tales of the Northern Sasquatch is about giant bipedal, forest dwelling, hirsute hominoid entities. For as long as humans have been around the North, the activities of these giants have been observed in many places, but only a few people have taken the time to share their stories of coming in contact with these forest giants. In the North they have been given many regional names; although they are commonly known as Nahganne or Sasquatch. The book presents activities occurring in the North such as sightings, strange vocals, discovery of large human-liked footprints, strange animal reaction, and weird tree events. It also contains bits of history about northern North America plus details about the First Nation Peoples and their history. In the book, Red Grossinger investigates and analyses the many reports that he has received with details about the encounters and occurrences.