7 new Late-Quaternary terraces in NE Oregon were mapped. Strath terrace deposits were dated using tephrochronology and OSL dating. Landscape position of terraces indicate faulting at a rate of 2.5 ± 1.0 mm yr− 1. Incision rates ranged from 0.57 ± 0.2 to 0.21 ± 0.16 m ky− 1. Channel steepness appears largely controlled by faulting.