Indigenous Cartography Tribal peoples had an encyclopedic knowledge of their land and that of the neighboring tribes who were their relatives and longtime trading partners. Some tribal people would travel very far from their home villages to trade for the choicest resources. Trading hubs like Celilo and Willamette Falls attracted tribes from far upriver enabling tribal people to learn much about their river highways, including the names of landmarks and peoples. The tribes were knowledgeable enough about their regions that when Lewis and Clark explored the Columbia River, the explorers used information gleaned from local tribes to navigate their path … Continue reading Change Comes to the Tillikum – The Lewis and Clark Expedition