 Before European settlers arrived in the 19th century, Central Oregon was inhabited by the southernmost Sahaptin tribes and the northernmost tribes of the Northern Paiute.However, with the arrival of settlers along the Oregon Trail in the mid-19th century, both tribes soon found themselves at odds with the settlers and the U.S. Army.Peter Skene Ogden led a party of Hudson's Bay Company trapping through Central Oregon in 1826, becoming the first Euro-Americans explorers to visit the area.