Lake Superior bluff shorelines have been eroding for thousands of years and will continue to do so. Because the erosion is often episodic, land owners may not observe bluff recession over periods of a few years. There may be periods of ten or more years with little or no erosion followed by several years of rapid erosion. To protect a structure from this erosion and resulting bluff retreat, it is necessary to have sufficient building setbacks to account for this continuing process. This will minimize the future chances of a building having to be moved or even destroyed because of an unsafe location at the top of the bluff. The purpose of this report is to provide guidance to Bayfield county as they seek to establish a safe coastal setback requirement.