Florida Rivers

Flow Accumulation · 30 m DEM

What you're looking at

Florida is the flattest US state — highest natural point is just 105 m. Most drainage is sheet flow rather than concentrated rivers. The result is a uniquely-textured flow accumulation map: faint diffuse patterns where most other states show sharp dendritic networks.

Watershed Stats

SourceUSGS 3DEP 30 m

Stream segments147,597 (vector)

Max Strahler order8

NotableHighest point: 105 m (flat!)

AlgorithmD8 + Strahler

ToolWhitebox Tools

Major Rivers

St Johns (Jacksonville)S7
Suwannee at the GulfS6
Apalachicola at the GulfS7
Caloosahatchee (Ft Myers)S6
Kissimmee / EvergladesS5

How it works

The St Johns River is one of few US rivers that flows north — across the peninsula's very gentle north-tilt. The Everglades is technically a 60-mile-wide, 6-inch-deep river flowing south toward Florida Bay; in flow accumulation it shows up as a broad, low-intensity sheet rather than a discrete channel.

Pitch context: this is the same engine that renders a 160-acre RTK survey at sub-meter resolution. The pipeline doesn't change — only the bounding box.

Sources & tools listed at /data