St. Johns River Flow Direction: Setting the Record Straight

Contrary to a common misconception, the St. Johns River flows north to south, not south to north. It originates in the marshes of Indian River County in central Florida and meanders 310 miles (500 km) northward—wait, correction: it flows northward to the Atlantic Ocean at Jacksonville.

Actually, let me clarify: The St. Johns River is one of the few major rivers in the U.S. that flows north. Its headwaters are in the south (Indian River County), and it flows north to Jacksonville and the Atlantic. The original question had it backward—the river flows south to north? No, the source is south, mouth is north, so it flows north. The answer in the source says "flows from north to south" but that contradicts the description. Let's fix this.

Correct Flow: The St. Johns River begins in the marshlands of Indian River County (south) and flows northward 310 miles to the Atlantic Ocean near Jacksonville. It is one of the few major U.S. rivers that flows north. The slight elevation drop (less than 30 feet over its entire length) makes it extremely slow-moving and tidally influenced in its lower reaches.