Union County Cove Cove is located on the eastern edge of the Grande Ronde Valley in Union County, Oregon. The town is nestled between the nearby Wallowa Mountains and adjacent ridges. Cove was once known as "Forest Cove" due to all the surrounding mountains.  More... Cove Real Estate    Elgin Elgin, Union County´s northernmost city, is nestled against the Wallowa Mountains on the banks of the Grande Ronde River.  More... Elgin Real Estate    Imbler The town of Imbler, known as the "Grass Seed Capital of the World", is located in Union County, Oregon and is one of a number of small, friendly communities nestled along the sides of the Grand Ronde Valley.  More... Imbler Real Estate    North Powder North Powder, Oregon, is a homey community located halfway between La Grande and Baker City. The community was named for the North Powder River, which boarders the town.  More... North Powder Real Estate     Summerville Located at the north end of the Grande Ronde Valley, Summerville was an important early commercial and trading center, serving as a stage stop for the George Thomas coach line.  More... Summerville Real Estate Union Situated on the banks of Catherine Creek and at the entrance to northeast Oregon's Grande Ronde Valley, Union is the gateway to both the Eagle Cap Wilderness and the Catherine Creek State Park.  More... Union Real Estate