Bathymetry and selected perspective views of 6 reef and coastal areas in Northern Lake Michigan.

Boulder Reef
 

Figure 2.3 - Oblique view of Boulder Reef looking southwest emphasizes the east-west lineations and smoother morphology of a sand draped surface on the northern part of the reef. A "window" of gravel/cobbles is likely in the foreground at the northern edge of the map. Distance across the bottom of image is about 3.0 km.