Gilliam County, Oregon lies in the far northeastern corner of the state along Columbia River bordering Washington with an area of 1012 square miles and population estimated at 1,906 as of 2020. This sparsely populated county is known for its wheat fields that stretch mostly undisturbed across rolling hillsides especially during springtime when lovely wildflowers called balsamroot dazzle visitors all across famous Columbia Highway Route 30 meandering through landscape .