Archaeology Magazine - March/April 2018 - 48

A late 19th-century postcard depicts villagers
digging tar that overflowed the banks of Pitch Lake.

to archaeologists as the Ortoiroid culture, migrated
from the Orinoco Basin in Venezuela and Colombia. Some
of these early inhabitants lived close to Pitch Lake, at a small
settlement called Banwari Trace, the oldest archaeological site
in the West Indies at 7,200 years old. There, the Ortoiroid
people survived by fishing, foraging, hunting, and experimenting with plant cultivation. They left behind bone projectile
points, shells, fishing hooks carved from peccary teeth, and an
array of stone tools used for scraping animal hides, processing
plant fibers to make baskets, and other tasks.
The Ortoiroid people made the bulk of their shelters,
weapons, containers, and tools out of organic material, but
those objects rotted and disappeared once they were thrown
out or buried, leaving little for archaeologists to pore over
today. "What we have is a very skewed idea of the total material
culture of the Amerindians," says Leiden University archaeologist Arie Boomert, an authority on Trindidad's prehistory. "We
only know a little bit of what they had and what they did." And
most of that knowledge comes from indirect evidence. For
instance, impressions of woven mats left on ceramic griddles
allow archaeologists to reconstruct wickerwork, Boomert says.
Pitch Lake has acted as a rare time capsule for these organic
objects, but the constant movement of the lake has removed
them from their archaeological context. The age and origins
of the 11 Pitch Lake artifacts was therefore unknown.
However, Ostapkowicz recently embarked on the first
scientific study of this dispersed collection, using a battery of tests to help understand which cultures made
them and exactly how they fit in Trinidad's prehistory. In
the process, she and her colleagues have made a number of
discoveries, some of which have helped show that early Trinidadians were more sophisticated than previously believed.

with caimans, butterflies, and parakeets. "It would
have been quite different from what you see today,"
Ostapkowicz says. "There would be a very strong
smell of sulfur and other chemicals in the air." Sir
Walter Raleigh was one of the first Europeans
to see the site, in 1595. He used asphalt from
Pitch Lake to caulk the hull of his ship and was
impressed by its abundance and "most excellent"
quality. Commercial exploitation of the pitch
began on a large scale in 1857, when a French
firm started refining the asphalt and exporting it
around the world. An estimated 11 million tons of
tar have since been dredged from the pit. Though
the site is naturally refilled by an underground
reservoir of oil and gas, the surface has dropped
as much as 40 feet in the industrial era.
During this dredging, several strange discoveries were
made. In 1951, the director of an asphalt company working
at Pitch Lake notified Caribbean archaeologist Irving Rouse
that his workers had discovered a six-foot-long wooden
paddle, "which must have been handled by a giant." They also
found a four-legged bench with animal heads carved at each
end. Both objects were donated to the Peabody Museum of
Natural History at Yale University. An unknown number of
wooden artifacts might have been unwittingly tossed out or
sold to tourists or private collectors over the years of commercial exploitation. The full list of Pitch Lake carvings
now in public museums includes three paddles, a bowl, a
platter, a mortar, a bench, a high-backed chair known as a
duho, and two loom weaving tools. Five of those objects are
housed in the National Museum and Art Gallery of Trinidad
and Tobago-and they are precious resources for Trinidad's
prehistory. "The only other wooden item that we have is a
canoe," says curator Lorraine Johnson.
Among the objects that have been
discovered in Pitch Lake are a highbacked bench known as a duho (below)
and a four-legged bench (bottom) with
animal heads carved at each end.

istoric accounts indicate that Pitch Lake used to
be a more alluring place than it is now, its shores lush
with mango, horseradish, turpentine, and pineapple
trees. Islands of vegetation within the pitch itself were alive

ARCHAEOLOGY * March/April 2018

Table of Contents for the Digital Edition of Archaeology Magazine - March/April 2018