The Lost Towns Project is the search for Anne Arundel County's colonial period towns. It is led by county archaeologist Dr. Al Luckenbach along with his team of professional and amateur archaeologists.

At London Town, intensive archival research identifies the 17th century lots of the original plan. The archaeological field team excavates the plow zone (top six to twelve inches of soil which has been plowed) and screens it for artifacts while exposing the subsoil beneath. In this subsoil, evidence of Colonial period buildings still exist.

Several buildings have been identified at London Town which date from this period. Carpenters built the "earth fast" structures upon wooden posts which were sunk three to four feet into the ground. Discolorations in the clay subsoil are the identifiable remains of these support posts. Archaeologists locate and outline these structures by mapping post holes.

Archaeological evidence is used to determine the kind of structure that once stood on the site.

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