Six Mile Cypress Slough Preserve is a protected pond cypress and
mixed hardwood strand southwest of Ft. Myers in rapidly developing
Lee County. Permanent protection of the slough began in 1976 when
a group of Lee County students studying the role of forested wetlands
became alarmed at how fast these ecological treasures were being
destroyed by development. Known as the Monday Group, these students
launched a campaign to save the slough from logging and water
diversion. Lee County voters responded by increasing their own
taxes to purchase and convert the slough into a preserve. In 1991,
Lee County Parks and Recreation opened the Preserve to visitors.
The slough has a fully accessible 1.2 mile elevated boardwalk
trail, observation decks for wildlife viewing, seating enclaves,
and picnic areas and restroom facilities.
Sloughs are linear wetlands and are natural drainage-ways and
corridors for migrating or wide-ranging wildlife. Six Mile Slough
encompasses 2,200 acres, is about 9 miles in length, and averages
1/3 mile in width. The slough collects runoff from a 57-square-mile
watershed. During the wet season (June through October), 2 to
3 feet of water flows slowly through the slough allowing sediments
to settle and pollutants to be absorbed by plants. This cleans
the water as it flows southwest to the Estero Bay Preserve. The
slough also deters flooding by slowing down runoff, some of which
is absorbed by plants and some of which filters into the ground
to replenish groundwater and to recharge shallow wells.
The preserve is home to at least ten species of endangered plants
and animals as well as numerous more common plants and animals.
The slough is popular with birders since many species of songbirds,
wading birds, and raptors are permanent residents, and birds migrating
across the Gulf of Mexico stop in the slough to rest and "refuel."