Big Cypress National Preserve has four major watersheds:
(1) Central Preserve, (2) Okaloacoochee Slough, (3) Mullet Slough and (4) the Everglades.
Within each watershed are major drainages …
Were water is deepest and flows longest.
Those include sloughs and strands.
Between the strands are higher lying (but still soggy) marl and dwarf cypress prairie.