page_title: Grim's Ditch
section_title: Chilterns
hierarchical_section_title: Grim's Ditch / Chilterns
caption_attribution_description: English: Street sign for Graemesdyke Road, Berkhamsted, Hertfrodshire, UK. The road is named after the ancient earthworks, Grim's Ditch which passes through the town
context_page_description: Grim's Ditch, Grim's Dyke or Grim's Bank is a name shared by a number of prehistoric bank and ditch earthworks. Enigmatic in both their naming and original function, examples are found across the chalk uplands of southern England.
context_section_description: The Chilterns ditch starts at Bradenham, further north in the Chilterns than the end of the South Oxfordshire ditch.  There are separate sections extending some 30 km north to Ivinghoe, partly along the Chiltern escarpment.  Its size varies considerably.  Its purpose is uncertain, and different sections may have had different functions. The route of the Grim's Ditch apparently passed through the town of Berkhamsted, and remnants of the earthwork can be seen on Berkhamsted Common and on the village green at Potten End.
caption: Graemesdyke Road, Berkhamsted
exif: {"Image Make": "Canon", "Image Model": "Canon EOS 400D DIGITAL", "Image XResolution": "240", "Image YResolution": "240", "Image ResolutionUnit": "Pixels/Inch", "Image DateTime": "2013:07:29 11:13:15", "Image Artist": "unknown", "Image ExifOffset": "184", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail XResolution": "72", "Thumbnail YResolution": "72", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "648", "Thumbnail JPEGInterchangeFormatLength": "18409", "EXIF ExposureTime": "1/13", "EXIF FNumber": "28/5", "EXIF ExposureProgram": "Landscape Mode", "EXIF ISOSpeedRatings": "400", "EXIF ExifVersion": "0221", "EXIF DateTimeOriginal": "2013:02:01 16:25:26", "EXIF DateTimeDigitized": "2013:02:01 16:25:26", "EXIF ShutterSpeedValue": "92511/25000", "EXIF ApertureValue": "2485427/500000", "EXIF ExposureBiasValue": "0", "EXIF MaxApertureValue": "29/8", "EXIF MeteringMode": "Pattern", "EXIF Flash": "Flash did not fire, compulsory flash mode", "EXIF FocalLength": "18", "EXIF FocalPlaneXResolution": "3888000/877", "EXIF FocalPlaneYResolution": "432000/97", "EXIF FocalPlaneResolutionUnit": "2", "EXIF CustomRendered": "Normal", "EXIF ExposureMode": "Auto Exposure", "EXIF WhiteBalance": "Auto", "EXIF SceneCaptureType": "Standard"}