Maryland Historical Trust (2014) "Walsh Gravel Pit Phase II and Phase III Archaeological Database and Inventory"

Samples that cite this reference

Lab number Site Province / State Normalized age δ13C (per mil)
Beta-216025 18HA34 (Walsh Gravel Pit) 410 ± 60
Beta-216026 18HA34 (Walsh Gravel Pit) 360 ± 40