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Double Cross Dyke is a linear earthwork situated on Upwaltham Hill in West Sussex. The monument comprises two parallel ditches with intervening banks, characteristic of Iron Age defensive or territorial boundaries, though the precise dating and function remain subjects of archaeological interpretation. Such dyke systems were commonly constructed during the later prehistoric period to demarcate land divisions, control movement, or provide defensive positions across downland landscapes. The site contributes to the broader understanding of Iron Age settlement patterns and land organisation in the South Downs region.
Double cross dyke on Upwaltham Hill is a scheduled monument protected by Historic England under reference 1018061. View the official record →
Double Cross Dyke is a linear earthwork situated on Upwaltham Hill in West Sussex. It is designated a Scheduled Ancient Monument by Historic England (NHLE) under reference 1018061.
Double cross dyke on Upwaltham Hill 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 1018061.
Several scheduled monuments lie within 10 km, including Long Down prehistoric flint mine (3.8 km), Causewayed enclosure, World War II searchlight emplacements and associated remains on Halnaker Hill (4.3 km), Madehurst Wood earthworks (5 km).
This page is just one thread. A full Aubrey report pulls together 15 strands of Double cross dyke on Upwaltham Hill'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.
Double cross dyke on Upwaltham Hill stands on White Chalk Subgroup, bedrock that formed in the Maastrichtian. The rock here is chalk.