The outdoor recreational aspects of the Lake Erie-Lake St. Clair Basin are reported. Although the area is a focal point for outdoor recreation, pollution of the water and aesthetic degradation of the shoreline are major deterrents to the full utilization of the recreation resource. Needs and goals for lands and development are reviewed, along with suggested programs for continuing surveys and studies. Appended are an inventory of existing recreation areas, a bibliography, views of cooperating agencies, and the methodology for estimating demand and for determining acreage needs.