Underwater Archeology

Finding History

Key Biscayne Magnetometer Survey

As sub contractor for Coastal Systems International in the Key Biscayne
beach renourishment project a shallow water high-resolution magnetometer
survey of the proposed sand borrow areas was conducted to determine the
presence of cultural submerged resources in compliance with Federal and
State ordinances.

Soldier Key Shipwreck, Key Biscayne, FL

Sub-bottom survey of the old shipwreck located 5 miles south of Key
Biscayne, FL for the National Park Service in water depths between 3 to
15 ft. Different sub-bottom anomalies were processed to create a
probability distribution map of targets to locate and visualize
additional shipwreck remains.

Archaeological Studies, Key west, Florida

The company CGS has a permit to search for underwater-submerged
resources in the area of Key West, Florida. We provided sub-bottom
profiler services to locate sub-bottom anomalies and generate accurate
sub-bottom maps identifying the amounts of sand up to bedrock to
complement their magnetometer studies in the search for a Spanish
Galleon of the Atocha Fleet.

SBP survey of the Montecristi shipwrecks

In the northern Dominican Republic. Sub-bottom survey with North
Caribbean Research, using GeoCat technology, marine magnetometer and
metal detector to locate shipwrecks and submerged cultural artifacts of
historical value in the Montecristi area.

Little Salt Spring, Florida

Underwater archaeological project in West Florida with Dr. John Gifford in search of buried Paleo-Indian features in the spring basin, using the RovBert, a specially modified Phantom HD2+2 ROV, marine magnetometer and metal detector.  We have been involved in this continuing project since 1993. 

Santa Maria Marina, Miami. FL

With underwater archaeologist Dr. John Gifford. Very shallow water
pre-construction bathymetric, sub bottom and metal detector survey to
locate “solution holes” and investigation of magnetic anomalies in
search of submerged cultural resources along the west central coast of
Biscayne Bay. Used GeoCat technology, marine magnetometers and metal

Actium Project, Greece

With Dr. Bill Murray from the University of South Florida and Dr. John
Gifford from the University of Miami, conducted a Side Scan Sonar search
of the waters in the vicinity of Preveza to pinpoint the location of
the Actium Battle where the Roman Navy defeated Marc Anthony and

Jupiter Wreck, Florida

Sub-bottom profiler of the unidentified Spanish Galleon off Jupiter Inlet, FL. To assist in the location of Solution holes and data acquisition to visualize the debris distribution using our Geo-Cat system producing a tri-dimensional maps of sediment units.

Key West Spanish Galleon, Florida

CGS, Inc. has the permits to search for submerged cultural resources in
the vicinity of Key West, Florida. Bert Instruments provided its
sub-bottom profiler expertise to quantify and map the overburden in
search of solution holes to complement their magnetic and satellite data
in search of a Spanish Galleon.

Broward County Archaeological Investigation, Florida

This study is part of the Broward County, Florida, beach renourishment
project. Magnetic anomalies in the Broward County burrow areas and its
vicinity were studied utilizing our ROV, magnetometer, metal detector
and our team of underwater archaeologist divers. Each site was
documented using our high-resolution ROV video camera, a hand held
underwater video camera and still photography.

Port Royal Sunken City Mapping, Kingstone, Jamaica

As part of the Port Royal Development Project, Bert Instrumentswas
commissioned to map the sunken city of Port Royal, in Kingston,
Jamaica, buried under the sand after the 1692 earthquake. The
high-resolution sub bottom survey of the sunken city included the
mapping of old structures buried in the sediment and the sub bottom
survey of the proposed site for the Cruise Ship pier. The survey was
done utilizing Bert Instrumentsproprietary GeoCat technology that allows the generation of high-resolution images in very shallow water.

Sub-bottom survey of the Montecristi shipwrecks, Dominican Republic

In the northern Dominican Republic. Sub-bottom survey with North
Caribbean Research, using GeoCat technology, marine magnetometer and
metal detector to locate shipwrecks and submerged cultural artifacts of
historical value in the Montecristi area.

Hernando Archaeological Beach Multi-Sensor Survey, Florida

As part of the archaeological studies prior to the modifications to the Hernando Beach Channel, Bert Instruments was
awarded the contract for a multi sensor survey of the existing channel
and the proposed area for the new channel in a water depth varying
between 2 ft. to 6 ft. A combination of precision fathometer, high
sensitivity magnetometer, GeoCat sub bottom profiling system and precise
satellite positioning was utilized with all the instruments acquiring
data simultaneously with real time offsets to log always at the same
geographical position in spite of the geometry of the array of
instruments utilized.