 A small number of Seminoles continued to live in relative isolation in the Lake Okeechobee and Everglades region into the 20th Century.Flood control and drainage projects beginning in the late 1800s opened up more land for development and significantly altered the natural environment, inundating some areas while leaving former swamps dry and arable.These projects, along with the completion of the Tamiami Trail which bisected the Everglades in 1928, simultaneously ended old ways of life and introduced new opportunities.