The Preservation Alliance of Minnesota says Minnesota's lakeshore resorts are among the most endangered historic properties in the state. The group released its annual list of the ten most endangered buildings in the state to mark the beginning of preservation week. The list includes single buildings like the Anoka Amphitheater, the Hotel Lac qui Parle and Nashwauk City Hall and groups of buildings, like the historic parts of St. Peter damaged by this spring's tornadoes, and the Department of the Dakota buildings at Fort Snelling. Jim Fogerty of the Minnesota Historical society says despite resorts being such an important part of the state's economy, several dozen mom and pop resorts close for good each year.