The Manis Mastodon Site near Sequim, Washington, became one of North America’s most important early-prehistory sites after excavations uncovered an American mastodon with a projectile point embedded in a rib. Found in 1977 on Emanuel Manis’s property and excavated under archaeologist Carl Eugene Gustafson, the site yielded evidence that the point, made from another mastodon’s bone, had been shaped by humans and that the animal survived the wound for a time. Later testing dated the specimen to about 13,860 to 13,763 years before present, roughly 800 years older than Clovis-era occupation, helping reshape views of when people first reached the Americas.