Figure 7. Vulnerability ranking for coastal geomorphology within the National Park of American Samoa. The colored shoreline represents the variations in coastal geomorphic within the park. The National Park of American Samoa consists of several geomorphology types, including very high vulnerability carbonate sand beaches, high vulnerability rubble to cobble shoreline skirted by fringing reef, moderate vulnerability alluvium and narrow fringing reef with cliffs, and low and very low vulnerability rock cliffs.