Stone tools may place some of the first Americans in Idaho 16,500 years ago
Artifacts add to evidence that North America’s early settlers predated an inland, ice-free path
![stone points](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2019/08/082819_BB_cooper-ferry_feat.jpg?fit=1028%2C579&ssl=1)
Sharp stone points dating to as early as around 16,500 years ago at an Idaho site resemble those from around the same time in Japan, researchers say.
L.G. Davis et al/Science 2019