Public Tours July 19, 4 6 p.m. Celebrating 35 Years! Natural Resources Research Institute UNIVERSITY OF MINNESOTA DULUTH Driven to Discover Our research goes to work for you. Refreshments in the lobby. .Four tours, every half hour. Learn about research that reduces waste, increases efficiencies & promotes economic growth for Minnesota. NRRI's mission is to deliver research solutions to balance our economy, resources and environment for resilient communities. 5013 Miller Trunk Hwy./Hwy. 53 in Hermantown Turn east on Cirrus Drive, by Northern Tool, approach building from behind.