Everglades National Park, Florida

Steven Dutch, Natural and Applied Sciences, University of Wisconsin - Green Bay
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Everglades National Park, Florida

..Where a man can hide, and never be found
and have no fear of the baying hound.
But he better keep a-moving and don't stand still.
If the skeeters don't get him then the gators will.

"Everglades," Kingston Trio

Everglades National Park, Florida

The map above shows the towering mountainous landscape of southern Florida, where elevations in the far northern part of the map reach a dizzying 4 meters above sea level. Better stop to pick up oxygen and a Sherpa guide before heading north.

Think this area might have problems if sea level rises a couple of meters?

Like the Okeefenokee, the Everglades is a wide, shallow, sluggishly flowing river that owes its existence to a low confining ridge. Like the Okeefenokee, the Everglades is clear, clean, and shallow. Unlike the Okeefenokee, the Everglades has limestone just below the surface. The ridge and the park are composed of the Pleistocene Miami Formation. The ridge is called the Miami Oolite Ridge and is composed of oolitic limestone - sand-sized pellets of limestone created by wave action. The developed axis south of Miami and the one highway across the park follow the ridge.

For a state underlain almost entirely by Tertiary and Quaternary marine limestone, and whose highest point is 100 meters above sea level, the 1981 Geologic Map of Florida has the most blinding color palette I've ever seen on a geologic map. Caution! Do not stare directly into the rays of this map without adequate eye protection!

Yee-Haw!

Everglades National Park, Florida An airboat ride from one of the operators adjacent to the park is cornball but too much fun to pass up.
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Everglades National Park, Florida An airboat trail. The water is only a couple of feet deep at most.
Everglades National Park, Florida Carefully cultivated relationships with the local reptiles guarantee alligator sightings.
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Everglades National Park, Florida No that's not a lawn gator - it's a set of concrete stepping stones.

The Everglades

Everglades National Park, Florida The entrance sign is a coral boulder
Everglades National Park, Florida Florida panthers are endangered and frequent victims of roadkill.
Everglades National Park, Florida The visitor center.
Everglades National Park, Florida Left and below: Slightly higher ground is dominated by open pine forest.
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Everglades National Park, Florida Left and below: Low ground is dominated by grass, flooded in the wet season but dry here.
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Everglades National Park, Florida Slightly elevated hammocks stand as low islands in the grass.
Everglades National Park, Florida 

Mahogany Hammock

Everglades National Park, Florida A boardwalk leads around one hammock.
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Everglades National Park, Florida Epiphytes are abundant on the trees. They are not parasites but merely grow on the trees.
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Everglades National Park, FloridaEverglades National Park, Florida

Flamingo

Everglades National Park, Florida Ironically, one of the best places to see bird life is a water treatment pond at Flamingo, at the end of the road.
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Everglades National Park, Florida Coastal mangrove tree on Florida Bay
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Everglades National Park, Florida The shoreline  at Flamingo is underlain by limy marl.
Everglades National Park, Florida Views of Florida Bay
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Everglades National Park, Florida Left and below: mangrove roots. Mangroves are potent agents of shoreline stabilization.
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Pahayokee Overlook

Everglades National Park, Florida A view out over the grasslands.
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Everglades National Park, Florida Left and below: This was the dry season and areas normally under water were exposed. Limestone is never far below the surface here.
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Royal Palm

Everglades National Park, Florida One of the first parts of the Everglades to be preserved, just inside the park entrance. A boardwalk complex offers views of birds and aquatic life.
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Everglades National Park, Florida The agricultural development just outside the park that competes with the park for water.

Alligator Alley

U.S. 41 starts out as Calle Ocho in Miami's Little Havana, runs north of the Everglades as Alligator Alley, then snakes northwest, ultimately to pass a few miles from my home in Green Bay, Wisconsin.
Canals along the highway intercept a lot of the water that formerly went into the Everglades.
A lock and floodgate on one of the canals.
Ironically, the scenery outside the park was much more typical of how most of us imagine the Everglades, partly due to the time of year (the dry season) but also due to water diversion.

Much of this land is protected as Indian reservation or as the Big Cypress National Preserve.


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Created 15 November 2005, Last Update 01 July 2012

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