1) Calapooya 2) Calapuya 3) Kalapooia 4) Penutian 1) Calapooya 2) Calapuya 3) Kalapooia 
The Kalapuya are a Native American ethnic group and are members of the Confederated Tribes of the Grand Ronde Community of Oregon. The Kalapuya tribes` traditional homelands were the Willamette Valley of present-day western Oregon in the United States, an area bounded by the Cascade Mountains at the east and the Oregon Coast Range at the west, th....