However, it is clear that the sediment eroded from the cliffs is transported northward around the eastern and western flanks of the island where it is deposited in the form of two “horn-like” features, Brant Point on the east and The Portage on the west.
Coastal Processes of the Whatcom County Mainland (dnr.wa.gov)Numerous natural erosional and depositional processes operate upon shorelines to create a diversity of coastal landforms. Waves are among the most important causes of this diversity as they remove, build, and shape beaches and sea cliffs.
Bellingham Bay (figure 14)