Five portholes along the wall explain the process for finding historic underwater sites.
Step #1: Divers often use side scan sonar as well as maps and historical documents to locate a site.
Step #2: Divers measure and record the exact location of the site and make a detail map of the area before excavating.
Step #3: Underwater archaeologists excavate and bring up artifacts and timbers from the site. They record the location of each object so it can be plotted on the map.
Step #4: Waterlogged wood and artifacts must receive special conservation treatment to survive. Objects must be kept wet until they are treated or they will begin to deteriorate. Treatment of large objects can take a long time and require a large laboratory.
A curved wall of bubbling portholes displays four artifacts from underwater sites. The screens below them tell the stories of:
Mysteries from the Deep: This wine bottle encrusted with oyster shell was a random find located by oystermen tonging for oysters.
Church Neck Wells: This site was discovered in Northampton County when waves eroded a cliff. Evidence of barrel wells and tanning pits were found at the cliff base. One of the tanning pits yielded this child’s shoe dating from the 17th century.
Yorktown Shipwrecks: Here lies the story of Lord Cornwallis’ s deliberate scuttling of a ship during the Revolutionary War at Yorktown. The deadeye featured here was part of the rigging on the ship and controlled the ropes that raised and lowered the sails.
Chickahominy Shipyards: A survey project recorded the remains of two ships from the Revolutionary War period in the Chickahominy River. This oarlock told archaeologists how some of the ships were propelled.
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