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Grim's Ditch is a linear earthwork consisting of a bank and ditch that survives as a substantial landscape feature in the Berkshire countryside northwest of Betterton Down. This 590-metre section represents part of a much longer system of such linear boundaries that extend across southern England, typically attributed to the Iron Age period, though some sections may have seen continued use into the Romano-British era. The monument's original function remains debated among scholars, with interpretations ranging from territorial demarcation and stock control to defensive or ritual purposes. The name "Grim's Ditch" is a traditional appellation applied to several such linear earthworks across the region, deriving from Anglo-Saxon or medieval folklore rather than documented historical sources.
Grim's Ditch; section 650yds (590m) long NW of Betterton Down is a scheduled monument protected by Historic England under reference 1006308. View the official record →
Grim's Ditch is a linear earthwork consisting of a bank and ditch that survives as a substantial landscape feature in the Berkshire countryside northwest of Betterton Down. It is designated a Scheduled Ancient Monument by Historic England (NHLE) under reference 1006308.
Grim's Ditch; section 650yds (590m) long NW of Betterton Down is a Scheduled Ancient Monument, legally protected by Historic England (NHLE) — the body responsible for designating and safeguarding heritage sites in England. The official designation reference is 1006308.
Several scheduled monuments lie within 10 km, including Yew Down round barrow 950m south west of Butterbush Reservoir (0.3 km), Segsbury Camp or Letcombe Castle hillfort (3.7 km), Two platform barrows and a bowl barrow 440m south of Greenway Cottages (4.7 km).
This page is just one thread. A full Aubrey report pulls together 15 strands of Grim's Ditch; section 650yds (590m) long NW of Betterton Down's history, each drawn from the record and mapped to the exact spot:
Every location is different. Not every section appears for every place, only what the historical record actually holds turns up in a report.
Grim's Ditch; section 650yds (590m) long NW of Betterton Down stands on White Chalk Subgroup, bedrock that formed in the Maastrichtian. The rock here is chalk.