Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Everglades National Park' has mentioned 'Island' in the following places:
Occurrence Sentence Text Source
Communities developed on the two largest pieces of dry ground in the area, on Chokoloskee Island and at Flamingo on Cape Sable, both of which established post offices in the early 1890s.
[60] Chokoloskee Island is a shell mound, a midden built roughly 20xc2xa0feet (6xc2xa0m) high over thousands of years of occupation by the Calusa.
Several walking trails in the park vary in hiking difficulty on Pine Island, where visitors can cross hardwood hammocks, pinelands, and freshwater sloughs.