590.04  Organization of districts.--The division shall organize each forest protection district so as to most effectively prevent, detect and suppress forest fires, and to that end, may employ wardens or forest rangers to have charge of its activities in each such district, may subdivide each district into patrol areas, may construct lookout towers, roads, bridges, firelines, ranger stations, and telephone lines, purchase tools for firefighting as well as other necessary supplies and equipment, and may carry on all other activities deemed necessary to effectively protect the district from such fires.