It lies within the boundaries of the Pictured Rocks National Lakeshore .
Grand Sable Lake is an undeveloped lake in Michigan 's Upper Peninsula near the town of Grand Marais , Michigan .
Grand Sable Lake lies within the boundaries of the Pictured Rocks National Lakeshore .
Grand Sable Lake is an undeveloped lake in Michigan 's Upper Peninsula near the town of Grand Marais , Michigan .