The Northwest Mathematics Conference (NWMC) is one of the finest regional education conferences in North America. Each fall, the conference is sponsored by the state or provincial math teachers' council of Oregon, Washington, or British Columbia. https://sites.google.com/view/northwest-math-conference-2023/home?pli=1
Location
Portland, Oregon at the Holiday Inn Columbia River (Formerly the Red Lion Columbia River) Jantzen Beach on Tomahawk Island.