Umatilla 5000 BC
From Ruralite Magazine, 2013 Anchored in fishing and regional trade, the village of Ímatalam spanned four miles along the banks where the Columbia and Umatilla rivers meet. The Umatilla people – Imatalamłáma – bred horses, collected roots and buried their dead in a 500-acre area from prehistoric to modern times. Radiocarbon dating on artifacts recovered from the Ímatalam site – once the largest village of the Umatilla people
