The Gulf Coast lying south of Charlotte Harbor was slow to yield to the advances of the white man’s culture. Its contours are irregular, broken by hundreds of indentations and held together by congeries of islands and keys almost too numerous to be charted and labeled. Only in recent years have surveyors and cartographers been able to map the area with reliable accuracy and correct some of the errors resulting from the incomplete observations of the early explorers. A confusion of geographical designation continues to plague the modern historian. Rivers noted by earlier writers appear now to have been mere inlets, while certain keys have lost their Spanish nomenclature or have had their features altered by the hurricanes of the past century and a half. Historical records are not abundant.
Hammond, E. A.
"Sanibel Island and its Vicinity, 1833, A Document,"
Florida Historical Quarterly: Vol. 48
, Article 6.
Available at: https://stars.library.ucf.edu/fhq/vol48/iss4/6