How tall is the Everglades?

Cross section of the Kissimmee-Okeechobee-Everglades (KOE) flow way
If you include the Kissimmee River
It’s a respectable 60 feet tall.
But subtract it out of the picture (leaving behind only Lake Okeechobee and the Everglades) and it’s all under 20 feet high.
Shorter than the top of a my single story roof.
It’s also infinite as far as the eye can see.