The Julia Tuttle Causeway sex offender colony (also called "Bookville" by former residents) was an encampment of banished, registered sex offenders who were living beneath the Julia Tuttle Causeway—a highway in Miami, Florida, USA—from 2006 to April 2010. The colony was created by a lobbyist named Ron Book, who wrote ordinances in several different Miami-Dade County cities to restrict convicted sex offenders from living within 2,500 feet (760 m) of schools, parks, bus stops, or homeless shelters. Since Ron Book was also head of the Miami Homeless Trust, Book ironically was also in charge of finding housing for the released sexual offenders. In the city/county of Miami-Dade, these ordinances made it so the only legal areas sex offenders could live in Dade County were the Miami Airport and the Florida Everglades. Miami-Dade laws are significantly stricter than State of Florida laws on residency restrictions for sex offenders.