Tortuga Island[1][2] (French: Île de la Tortue, IPA: [il də la tɔʁty]; Haitian Creole: Latòti; Spanish: Isla Tortuga, IPA: [ˈisla torˈtuɣa], Turtle Island) is a Caribbean island that forms part of Haiti, off the northwest coast of Hispaniola. It constitutes the commune of Île de la Tortue in the Port-de-Paix arrondissement of the Nord-Ouest department of Haiti.
Tortuga is 180 square kilometres (69 square miles)[3] in size and had a population of 25,936 at the 2003 Census. In the 17th century, Tortuga was a major center and haven of Caribbean piracy. Its tourist industry and reference in many works has made it one of the most recognized regions of Haiti.
A fall line is an upland region of the coastal plains meets and the term states that lots of rivers fall from this Piedmont to the coastal plain making rapids with waterfalls.
These falls are important as for the settlement as they block the ocean going ships from entering in any further upstream and also provided water power to run the region industries.