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
Clewiston, Florida grant to digitize their local newspaper, "The Clewiston News" and have the digital versions added to the free, open access Florida Digital Newspaper Library. Clewiston, Florida Clewiston is a city in Hendry County, Florida, United States. Its location is on the Atlantic coastal plain. The population was 7,155 at the 2010 census, up from 6,460 at the 2000 census. The estimated population in 2015 was 7,505. The city is located on the south bank of Lake Okeechobee, and the Lake Okeechobee Scenic Trail passes through the edge of the city. The city is home to the Clewiston Museum and the