Recent finds at Groundwell have pointed to the affluence of the area during the height of the Roman Empire. The discovery of a Nyphaeum, a shrine at a well-head, agrees with another Roman structure at a spring south of Durocornovium at Callas Hill. Swindon hill was inhabited largely for the availability of spring water and typically this was something the Romans recognised in their religious life, raising the possibility of a major temple site either destroyed or undiscovered. Remnants of monumental stonework were removed during bridge building which has raised speculation that the temple site is currently beneath a bridge pier. There is no evidence of any aqueduct, but given the close proximity of Dorcan Stream and the River Cole, it was unlikely one was needed.