Grim's Ditch (Chilterns)

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Grim's Ditch is a series of linear earthwork in the Chilterns (southeast England). A complete outline cannot be identified but separate sections exist over a 30-kilometre (19 mi) span between Bradenham, Buckinghamshire, Berkhamsted, Hertfordshire and as far as Pitstone and Ivinghoe Buckinghamshire. Pottery shards have been unearthed in excavations during the 1970s and 1980s suggesting that its origin may have been during the Iron Age and was believed to have been during a period when the landscape was clearer of scrub and the dense woodland than today as the straighter sections would have required clear lines of sight. The first mention of Grim's Ditch was a grant of 1170–90 in the Missenden Cartulary referring to it as Grimesdic. The Anglo Saxons commonly named features of unexplained or mysterious origin Grim. The word derives from the Norse word grimr meaning devil and a nickname for Odin or Wodin the God of War and Magic. Another mention is to be found in a 10th-century Anglo Saxon boundary charter for the Mongewell area.

Its size varies considerably. At Hastoe the ditch is 3.5 metres (11 ft) wide and 2 metres (6 ft 7 in) deep with a bank of 2 metres (6 ft 7 in) and an overall spread of 13.5 metres (44 ft). The purpose of the earthwork is uncertain. It is thought by the Ordnance Survey (1974) that it may be a set of local boundaries used to control the movement of cattle and carts and dating back to the Iron Age, as no Anglo-Saxon event is connected with it. It is not seen as having a defensive function due to the way that the banks have been constructed. It may in fact be a collection of structures with two or more purposes, with the hilltop section near Cholesbury being associated with the nearby Iron Age Hillfort whilst other sections lower down towards Aylesbury Vale may demarcate areas where pig and cattle grazing occurred. Sections are scheduled as ancient monuments.[1]

Route[edit]

Coordinates Grid reference nearby settlement
51°40′19″N 0°47′35″W / 51.6719°N 0.7931°W / 51.6719; -0.7931 SU834977 Bradenham
51°41′37″N 0°48′30″W / 51.6936°N 0.8084°W / 51.6936; -0.8084 SP823001 Lacey Green
51°43′07″N 0°47′15″W / 51.7186°N 0.7875°W / 51.7186; -0.7875 SP837029 Whiteleaf
51°42′43″N 0°45′58″W / 51.7120°N 0.7660°W / 51.7120; -0.7660 SP852022 Great Hampden
51°43′10″N 0°42′39″W / 51.7195°N 0.7107°W / 51.7195; -0.7107 SP890031 Great Missenden
51°45′00″N 0°42′09″W / 51.7500°N 0.7026°W / 51.7500; -0.7026 SP895065 The Lee
51°46′16″N 0°39′46″W / 51.7712°N 0.6629°W / 51.7712; -0.6629 SP922089 Cholesbury
51°46′34″N 0°37′56″W / 51.7762°N 0.6323°W / 51.7762; -0.6323 SP943095 Wigginton
51°45′34″N 0°35′11″W / 51.7595°N 0.5864°W / 51.7595; -0.5864 SP975077 Berkhamsted
51°46′15″N 0°32′49″W / 51.7707°N 0.5469°W / 51.7707; -0.5469 TL002090 Berkhamsted
51°45′57″N 0°30′50″W / 51.7658°N 0.5138°W / 51.7658; -0.5138 TL025085 Potten End

References[edit]

  • Ordnance Survey (1974) Britain in the Dark Ages, 2nd ed., text reprinted with corr., Southampton : Ordnance Survey, p. 19
  • Hepple & Doggett, Leslie & Alison (1971). The Chilterns. England: Phillimore & Co Ltd. ISBN 0-85033-833-6. 
  • Davis, Jean (1981). "Grim's Ditch in Buckinghamshire and Hertfordshire". Records of Buckinghamshire.