Figure 9. Regional coastal slope for GBNPP. The colored shoreline represents the regional slope of the land, 10 km landward and seaward of the shoreline. Very low change-potential coastal slope areas are where high mountains are adjacent to deep fjords. Coastal slopes become shallower and thus higher change-potential along the outer coast in the Gulf of Alaska and at the entrance to Glacier Bay where there is low elevation outwash material.