Coldwell Banker River Valley Realtors Share: Real Estate - Brokers and Realtors Coldwell Banker River Valley Realtors Visit Website Request Info 1808 E. Main St. Onalaska, WI 54650 (608) 784-9930 (608) 385-3340 (608) 784-4660 (fax) Facebook Hours: Monday-Friday 9-5, Evenings and Weekends By Appointment About Map About We train, coach and develop the area's top real estate agents. Directions Hwy 16 (Wisconsin Street)