where does the st. johns river begin and end
St. Johns River Starting in Indian River County and meeting the Atlantic Ocean at Duval County, the St. Johns is Florida's primary commercial and recreational waterway. It flows north from its headwaters, originating in the direction of the Lake Wales Ridge, which is only slightly elevated at 30 feet (9.1Â m) above sea level. Because of this low elevation drop, the river has a long backwater. It ebbs and flows with tides that pass through the barrier islands and up the channel.[8] Uniquely, it shares the same regional terrain as the parallel Kissimmee River, although the Kissimmee flows south.[2]
Backshore Sediments in this area are well-sorted and well-rounded. Its grain sizes are mainly coarse sand and medium sand, which are larger than that in littoral barrier dune.The sedimentary structures include parallel bedding and low-angle cross-bedding.
My Ántonia
Florida With a population of more than 18 million according to the 2010 census, Florida is the most populous state in the southeastern United States and the third-most populous in the United States.