Across the forests, mountains, river valleys, and wilderness corridors of North America, thousands of witnesses have reported encounters with a large, upright, hair-covered creature commonly known as Bigfoot. While often treated as folklore, the consistency of eyewitness descriptions, tracks, and behavioral reports across regions suggests a pattern worthy of closer examination. American Bigfoot: A Natural History Field Guide approaches the subject the way a wildlife biologist would study any elusive species—through terrain analysis, regional behavior patterns, and documented witness accounts. Organized state by state, the book examines how geography, habitat, and ecological corridors influence reported encounters across the United States. Each entry provides a structured field profile including: • Physical characteristics reported by witnesses • Habitat and terrain associations • Regional behavior patterns • Geographic reporting zones • Historical and modern encounter accounts drawn from newspapers, field reports, and firsthand observations From the dense conifer forests of the Pacific Northwest and the remote mountain systems of the Rockies to Appalachian hardwood ridges, Midwestern river corridors, and coastal swamp forests, the guide reveals how sightings align with real landscapes and wildlife travel routes. Rather than presenting speculation or sensationalism, this book compiles documented reports within a natural-history framework, allowing readers to examine the evidence region by region. For hikers, outdoorsmen, researchers, and readers fascinated by unexplained wildlife reports, American Bigfoot: A Natural History Field Guide offers the most comprehensive geographic examination of Bigfoot sightings ever assembled. Whether viewed as an undiscovered species, a cultural mystery, or a phenomenon of the wilderness itself, the reports collected here reveal a consistent story told by witnesses across the American landscape.