Flowerdew encompasses a great number of archaeological sites dating from prehistory through the 20^th c., some of which remain unexcavated.

Some notable sites include:

• PG40, the Maycocks site: a Native American village and cemetery, with later elements.
• PG41A-B, the Earthwork Wall: a Native American structure.
• PG64, the Stone House with the Enclosure, and an English burial site: 17^th c., with Native American elements.
• PG65, the Fortified Area/Post Structure and Native palisade: 17^th c., with Native American elements.
• PG66, Colonoware site (pottery likely made by Africans): 17-18^th c., with Native American elements.
• PG72, Sgraffito site:  17^th c. building.
• PG80, Colonoware site (pottery likely made by Africans): 18^th c., with Native American elements.
• PG90, Village: Native American, with 18^th-19^th c. elements.
• PG92, Structure with cellar and iron production site: 17^th c.
• PG98, Tavern: 18^th c., with Native American elements, and pontoon site (the largest and longest occupied site in Flowerdew).
• PG113, Peachy-Selden plantation: 17^th-20^th c.
• PG114, Slave cabin: 19^th-20^th.