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Knockcloghrim windmill is a nineteenth-century windmill located near Magherafelt in County Londonderry, Northern Ireland. The structure stands on bedrock comprising Palaeogene extrusive rocks, predominantly mafic lava and tuff formed during the Palaeogene period around 66 to 23 million years ago. This volcanic geology underlies much of the mid-Ulster landscape, providing a stable foundation for the mill's construction during the industrial expansion of the nineteenth century.
The windmill represents a significant phase in rural industrial development, when wind power was harnessed for grain milling and other processing activities across northern Ireland. Its location in the Magherafelt area, situated on higher ground where wind resources would have been favourable, reflects the practical site selection required for effective mill operation. The surviving structure demonstrates the engineering approach of the period to extracting power from the landscape's natural resources.
The monument is protected by the Historic Environment Division of the Department for Communities under reference number 12951, recognising its importance to the industrial and technological heritage of the region. Knockcloghrim windmill survives as a physical record of nineteenth-century rural industry and the mechanisation that characterised this era of Irish agricultural development.
Knockcloghrim windmill. windmill is a scheduled monument protected by Department for Communities NI under reference 12951. View the official record →
Knockcloghrim windmill is a nineteenth-century windmill located near Magherafelt in County Londonderry, Northern Ireland. It is designated a Scheduled Ancient Monument by DfC Northern Ireland (NISMR) under reference 12951.
Knockcloghrim windmill. windmill dates from the c19th period, and is classified as a windmill. It is one of over 32,000 scheduled monuments protected across the UK.
Knockcloghrim windmill. windmill is a Scheduled Ancient Monument, legally protected by DfC Northern Ireland (NISMR) — the body responsible for designating and safeguarding heritage sites in Ni. The official designation reference is 12951.
Several scheduled monuments lie within 10 km, including Barrow (2.8 km), Counterscarp rath (3.3 km), Aghagaskin fort. counterscarp rath (3.8 km).
This page is just one thread. A full Aubrey report pulls together 14 strands of Knockcloghrim windmill. windmill'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.
Knockcloghrim windmill. windmill stands on Unnamed Extrusive Rocks, Palaeogene, bedrock that formed in the Paleogene. The rock here is mafic lava and mafic tuff.