Buried Secrets
Florida’s deepest history lies hidden in ponds, sinkholes, and swamps, revealing a world far older than beaches and theme parks.
By Leonora LaPeter Anton
Florida’s ancient history does not rise in marble columns or stone statues. It rests mostly below ground in still waters, preserved in the dark muck of springs and ponds. On a two-lane road behind a Home Depot in Titusville, a metal plaque marks one such site.
It’s here, in 1982, that a backhoe operator working on a road for Windover Farms housing development near Kennedy Space Center exposed an underwater burial site. When Florida State University archaeologists drained the peat pond, they unearthed the remains of 168 ancient people.
The bodies had been carefully buried 7,000 to 8,000 years earlier, staked beneath criss-crossing wood poles with fabric handwoven from Sabal palmetto fibers. The oxygen-poor water had preserved the remains so well that 91 of them still held traces of brain tissue inside their skulls—the oldest preserved human brain matter ever found in the Americas at the time.
From that tissue, researchers recovered ancient DNA revealing genetic links to modern Native American populations. Just a few years later, in 1990, the federal Native American Graves Protection and Repatriation Act passed, limiting such excavations and giving native tribes a greater role in how they’re conducted.
Today, this National Historic Landmark is acknowledged simply by a metal sign that stands on a patch of manicured lawn at the entrance to the Windover Farms subdivision. The pond itself, tucked deep inside the housing development, has vanished beneath a Spanish moss-covered overgrowth of bald cypress, slash pine, and live oak, its location burnished even from state archaeological records to protect it from the curious.
Beneath that quiet corner of suburbia, though, lies one of the most extraordinary windows into the ancient past ever found on this continent—and the source of one of the largest and earliest collections of ancient textiles.
Mortuary ponds, where Florida’s first inhabitants buried their dead, have surfaced nowhere else in North America.
“In Florida, there are sites everywhere,” says Neill Wallis, curator of Florida archeology at the Florida Museum of Natural History at the University of Florida. “But you would never know it. Usually, nothing above ground would indicate anything was there.”
Most of these ancient burials emerged in the claws of a developer’s machinery or by divers or novice archaeologists exploring underwater caves.
In the 1950s, a World War II lieutenant diving in the 250-foot deep Warm Mineral Springs in North Port found a skull with brain matter and the remains of saber tooth tigers, giant sloths, and camels preserved in caves. Archaeologists later discovered the remains of ancient people there dating to the end of the Ice Age, almost 10,000 years ago.
Local divers at Little Salt Spring, another North Port sinkhole, revealed the preserved bone fragments of at least 44 people, some also as old as 10,000 years.
But the haphazard nature of the recoveries in these other ponds has produced far less insight into ancient life on the Peninsula than the Windover pond.
Rachel K. Wentz, author of the book Life and Death at Windover, analyzed skeletal fractures of the Windover bones for her thesis to see what kind of trauma they had experienced. She found
almost all of them to be accidental fractures.
“There didn’t look to be evidence of warfare,” she says. “So these things were sustained accidentally just from rigorous living.”
She found signs of nutritional distress and infection, but she also found evidence that people cared for each other. An elderly woman had survived despite a femur fracture. A young boy with spina bifida who had lost a foot had lived to be a teenager.
“We can infer kindness and tenderness,” Wentz says. “They didn’t just abandon these individuals when they got ill or injured. They were taking care of each other, which is really phenomenal to think about 7,000 to 8,000 years ago.”
The Brevard Museum of History and Natural Science in Cocoa has devoted an entire exhibit to the Windover bog bodies. It includes a bust of “Windover Woman,” a forensic recreation of a 7,000-year-old skull, and a few examples of the 53 distinctly constructed textiles, some loom-woven. Interactive exhibits offer insights into the daily lives of the inhabitants.
There are hundreds of sites going back thousands of years across Florida. Here are six more of these ancient wonders:
LADSON SITE
In 1968, an amateur paleontologist found the bones of an Ice Age mastodon 30 feet down in the Aucilla River, about seven miles inland from the Gulf of Mexico and 45 minutes southeast of Tallahassee. It took him three years to bring up the bones of the massive tusked animal, which became extinct 12,000 years ago. He placed the animal’s 400-pound skull on a raft of deflated inner tubes, inflating them to bring it to the surface. He named her Priscilla after a pig he had as a child. A replica of Priscilla, cast from the original skeleton in the 1960s and known as “Bones,” can be found at the Brevard Museum of History and Natural Science in Cocoa.
Other excavations at the Page-Ladson sinkhole followed, including one in 1993 that unearthed a mastodon tusk with grooves from a hunter’s stone tool. Another about a decade ago revealed the spot to be the oldest site of human habitation in the southeastern United States. The evidence came from a stone-knife fragment knapped by a human that archaeologists found within the 14,550-year-old stomach contents of a mastodon. Archaeologists believe the spot was a watering hole, located as much as 155 miles inland when the sea level was much lower, where Ice Age hunters killed and dismembered a mastodon.
LAKE PITHLACHOCCO CANOES
During a severe drought in the spring of 2000, a high school science class discovered the outlines of two-dozen dugout canoes in Newnan’s Lake, otherwise known as Lake Pithlachocco, near Gainesville. Archaeologists arrived and found 101 canoes and skiffs, the largest collection in the country. Most had been made some 500 to 5,000 years ago with logs of yellow pine and bald cypress hollowed by fire. Archaeologists decided the lake edge was a stopping point where travellers had to switch to alternate waterways and other canoes to get from the Atlantic Ocean to the Gulf of Mexico and back.
“They followed a course that moved like a snake across the landscape through water,” says Kenneth Sassaman, a professor of Florida archaeology at the University of Florida.
The lake water naturally recovered the canoes later that year. Sassaman and his students recently surveyed land west of the canoes and found settlements.
“I have a pretty good, airtight case that over time, people increasingly became aware of the high magnitude flooding that occurs … like once every 100 years,” Sassaman says, “so over time they were increasingly moving away from the lake’s edge to reduce their risk of flooding.”
The Silver River Museum at the Silver Springs State Park in Ocala, offers an exhibit on early dugout canoes in Florida.
JOHNS RIVER SHELL MIDDENS
In 1875, Jeffries Wyman, the first curator of Harvard’s Peabody Museum of American Archaeology and Ethnology, travelled up and down the St. Johns River, later publishing Freshwater Shell Mounds of the St. Johns River. He’d observed 48 shell mounds (also known as shell middens) in the river, some containing charred bones, human remains, and other man-made artifacts.
“The evidence that the shell mounds were made by the Indians now becomes almost inevitable,” he wrote in his diary on Feb. 21, 1867.
Shell middens represent, in general, the most visible signs of these ancient civilizations across Florida. At one time, hundreds dotted the Florida landscape and densely packed the St. Johns River. Some were used for burials. Others were symbolic, aligning with the solstices and drawing people from all over for ritual gatherings. But a number of them disappeared, mined for road fill and other projects, especially during the 1920s and 1930s.
Ancient people also gathered 1,600 to 1,350 years ago just north of Cedar Key for celebrations during the summer solstice, creating over time a horseshoe-shaped shell ridge, about 25 feet high by 250-feet long.
Sassaman, who has studied various shell middens, says these gatherings had a purpose beyond the celebration. “The most important practical outcome of what they were doing was that their entire network would gather at that place, reaffirm their commitment to one another, rekindle their dependency on one another, and then they dispersed at the end of the summer solstice feast,” he says. “So they have this huge social safety net that’s distributed geographically.”
MANASOTA KEY
In 2016, a diver found an ancient jaw beneath 21 feet of water on the continental shelf off Manasota Key, a barrier island near Venice. When archaeologists returned to the site, they found an underwater peat pond with Native American burials dating to 7,200 years ago that had once been miles inland from the Gulf of Mexico when sea levels were lower.
Now a protected area, it’s the first ancient burial site offshore in the Americas and one of only a few in the world. State archaeologists found the remains of 11 people, including a prenatal infant, a juvenile, adults, and elderly person, which they documented while consulting with the Seminole and Miccosukee tribes of Florida.
MIAMI CIRCLE
The demolition of old Miami apartment buildings to construct new ones in 1998 drew Miami-Dade County archaeologist Bob Carr to a pile of dirt at the juncture of the Miami River and Biscayne Bay. He’d come to this location as a 13-year-old kid digging for artifacts. Now he was responsible for preserving Miami’s ancient relics as developers swallowed Miami. He spotted shells, animal bones, ceramic shards—and then saw a large hole carved in the limestone bedrock, and another. A surveyor wondered if it was part of some sort of ancient art or maybe a circle. He determined the circumference based on the first two holes and used red paint to pinpoint where they should continue to dig. Sure enough, a circle of 24 basin-sized holes emerged.
“We soon realized that it was probably the footprint of a structure,” says Carr, now executive director for the nonprofit Archaeological and Historical Conservancy. “It was really well-made. It was something you might frankly expect to see in England or Europe, in general, and not in North America. In fact, it was the first recorded foundation of a structure cut into the bedrock ever found in North America.”
Later, they realized south Florida’s ancient people had used shells to carve out the holes some 1,500 years ago, likely to hold wood stakes in support of the building.
The one-time structure’s size and central location at the mouth of the river meant it was probably used by someone important. Now a national historic landmark, archaeologists eventually found the footprint of a town nearby—12 circles in all.
KEY MARCO SITE
In 1895, archaeologist Frank Hamilton Cushing led an excavation at Key Marco on the northern tip of Marco Island. In a mucky courtyard surrounded by shell mounds, he uncovered wood, bone artifacts, and woven fibers made between 1,300 and 500 years ago, including tools, ceremonial masks, and a carved wood figurine of a kneeling panther known as the Key Marco Cat. Archaeologists later realized the site was part of a larger town.
A housing development sits atop Cushing’s excavation today, but some of the artifacts can be found at the Florida Museum of Natural History in Gainesville. The Key Marco Cat was donated to the Smithsonian Institution in Washington, D.C., but it is currently on loan to the Marco Island Historical Museum through April 2026.
Leonora LaPeter Anton is a freelance writer based in St. Petersburg. For 36 years, she wrote stories at five southeastern U.S. newspapers, including 23 years at the Tampa Bay Times. She is also the reporter and host of a podcast, called Blood and Truth, about a man on death row for 50 years who has sought DNA testing to prove himself innocent. She received a Pulitzer Prize in 2016 for her investigative reporting on Florida psychiatric hospitals.
