Extended magnetometry survey carried out over a number of archaeological features including a Neolithic interrupted ditched enclosure, mortuary enclosure and Bronze Age barrow cemetery previously recorded in an earlier survey J113 over the line of the new gas main between Ilchester to Barrington A magnetometer survey carried out in March 2006 by Archaeological Surveys, approximately 500m southeast of the village of East Lambrook in Somerset, revealed a number of prehistoric archaeological features including an interrupted ditch enclosure and part of a mortuary enclosure. The latter was not interpreted by the March survey but was identified during excavation carried out by Cotswold Archaeology ahead of pipe laying operations. Further geophysical survey was commissioned in order to fully define the extent of the enclosure and to determine the archaeological potential of the surrounding area. The December survey succeeded in defining the full extent of the mortuary enclosure and has revealed an archaeologically rich landscape extending to the east and north. Additional features discovered by the new survey include ring-ditches associated with former round barrows and linear anomalies possibly related to land division and early agricultural activity.