Charred wood caught between layers of lava, indicating that there was enough time elapsed between flows to allow vegetation to grow on or around the older flow.
Expeditions & surveys; Railroad surveys; Teton River (Minn.); Valleys
The Teton Valley, "a vast plain, descending towards the east, the soil of inferior quality, and the dry vegetation indicated the change in the climate observed in going over the high, dry plains towards the Missouri." "The valley...