FORT ATKINSON-- The Iowa Department of Natural Resources (DNR) will host an open house on March 22, from 6 to 8 p.m., at Fort Atkinson State Preserve, 303 2nd Street, Fort Atkinson, to discuss upcoming repairs to several of the historic structures at the preserve. The open house will begin with a short presentation, with DNR staff on hand to answer questions. In case of inclement weather, the event will be moved to the Fort Atkinson Community Center at 303 3rd Street NW, Fort Atkinson.