Lake Okeechobee Valley and the Everglades. The trough is underlain by clay deposits that compacted more than the limestone and sand deposits did along both coasts of peninsular Florida. Until about 6,000 years ago, the trough was dry land. As the sea level rose, the water table in Florida also rose and rainfall increased. From 6,000 to 4,000 years ago, wetlands formed building up peat deposits. Eventually the water flow into the area created a lake, drowning the wetlands. Along what is now the southern edge of the lake, the wetlands built up the layers of peat rapidly enough (reaching thick) to
South Bay, Florida South Bay, Florida South Bay is a city in Palm Beach County, Florida, United States. It is the westernmost municipality in the South Florida metropolitan area. The population was 3,859 at the 2000 census. As of 2007, the population recorded by the U.S. Census Bureau was 4,506. While the current estimates place South Bay's population in the incorporated city limits at more than 4,000 people, surrounding areas increase the population figures to 54,000 people in a radius and more than 1.4 million in a radius. South Bay was named for its location on Lake Okeechobee. The town was incorporated in