Hellenistic Stairway at Southwest Corner of Agora. North-South Tributary of Poros Gutter South of Southwest Fountain House. Excavation around Hieron Southwest of Southwest Fountain House. Bedrock Pit at ... Κ-25 4902, 4903 ... Northern Foundation of North-South Rectangular Building in Section ΣΤ' and K ... North-South Tributary of Poros Gutter South of Southwest Fountain House ... Bedrock Pit at Intersection of Poros Gutter South of Southwest Fountain