Representatives of Excel! The tag line is paired with a logo that features a community icon in the center with four icons representing the natural elements of earth, water, wind and fire surrounding it to form a square. Estherville to provide technical and creative assistance to the project. After reviewing and interpreting the research, the North Star team concluded that one thing stood out. The four natural elements that are universally accepted as sustaining life- earth, water, wind and fire are found in abundant amounts in Estherville. They concluded:. EDN photo by Michael Tidemann.