One core, no.5, has been fully processed to recover environmental evidence and an assessment of the results is in preparation. Another core, no. 6, has been partially examined to further the study of the burial environment within the Hill.
This study was reported upon in July 2004 in a paper that also considered biological preservation issues in relation to options for remedial works (Canti et al 2004).
The entrance to the 1968 tunnel was partially re-exposed in November 2004. An inspection of the backfilling showed that this had been competently carried out for at least four metres inwards from the entrance.
Canti, M G, Campbell, G, Robinson, D, and Robinson, M 2004 Site Formation, Preservation and Remedial Measures at Silbury Hill, CfA Rep 61/2004
Chandler, R C 2003 Report on Geotechnical Aspects of the Stabilisation of Silbury Hill, Project Archive
English Heritage, 2001b Silbury Hill: Brief for Geophysical Investigation, Project Archive
English Heritage, 2002 Silbury Hill: Brief for the Commission of Further Geotechnical Investigations to the Shaft and Geophysical Anomaly A2, Project Archive
Field, D, 2002 The investigation and analytical survey of Silbury Hill, Arch Investigation Rep Ser, AI/22/2002, English Heritage
Kirkbride, M A 2001 Silbury Hill, Wiltshire, Report of Tomographic Survey November 2001, Rep no C100975/CR1, Cementation Skanska
Kirkbride, M A 2002a Silbury Hill, Wiltshire: Report of Surface Tomographic Survey, April 2002, Rep no C100975/CR2, Cementation Skanska
Kirkbride, M A 2002b Silbury Hill, Wiltshire: Final Report of the Geophysical Investigation, August 2002, Rep no C100975/CR4, Cementation Skanska
Kirkbride, M A 2003 Geotechnical Investigation of Silbury Hill, Avebury, Wiltshire, Rep no C2002/CR3, Cementation Skanska
Linford, N and Martin, L 2001 Silbury Hill, Wiltshire: Report on Geophysical Survey, February 2001, CfA Report 21/2001
Linford, P 2001 Silbury Hill, Wiltshire: Report on Geophysical Survey, June 2001, CfA Rep 65/2001
McAvoy, F 2000a Silbury Hill Shaft, A Desk-based Assessment of the Potential for Archaeological Recording and Investigation, CfA Archive
McAvoy, F 2000b Silbury Hill: Evaluation Report and Options for Further Work, CfA Archive
McAvoy, F, 2002 Silbury Hill, Wiltshire, Report on the evaluation through coring of the physical and geophysical anomalies on the northern aspect of the mound, CfA Archive
Worthington, M H 2002a Assessment of the Results of a Seismic Tomographic Survey at Silbury Hill, Wiltshire, Project Archive
Worthington, M H 2002b Assessment of the Results within Cementation Skanska Report no. C100975/CR4: Silbury Hill, Wiltshire, Final Report of Geophysical Investigation, August 2002, Project Archive