Ancient Monuments

History on the Ground

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Cilan-Uchaf Burial Chamber

A Scheduled Monument in Llanengan, Gwynedd

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Latitude: 52.7825 / 52°46'56"N

Longitude: -4.5218 / 4°31'18"W

OS Eastings: 230019

OS Northings: 323524

OS Grid: SH300235

Mapcode National: GBR 56.XL24

Mapcode Global: WH451.HBZ7

Entry Name: Cilan-Uchaf Burial Chamber

Scheduled Date:

Source: Cadw

Source ID: 3173

Cadw Legacy ID: CN104

Schedule Class: Religious, Ritual and Funerary

Category: Chambered tomb

Period: Prehistoric

County: Gwynedd

Community: Llanengan

Traditional County: Caernarfonshire


The monument comprises the remains of a chambered tomb, dating to the Neolithic period (c. 4,400 BC - 2,900 BC). Chambered tombs were built and used by local farming communities over long periods of time. There appear to be many regional traditions and variations in shape and construction.

All that remains of the cromlech near Trwyn Llech y Ddol is a great recumbent stone which measures 3.2m along its north-south axis, 2m wide and has a maximum thickness of 1.2m. Under the northern end are two small fragmented stones; one in particular is earthfast and the likely remains of an orthostat.

The monument is of national importance for its potential to enhance our knowledge of prehistoric burial and ritual. The monument is an important relic of a prehistoric funerary and ritual landscape and retains significant archaeological potential, with a strong probability of the presence of both intact burial or ritual deposits and environmental and structural evidence, including a buried prehistoric land surface. Chambered tombs may be part of a larger cluster of monuments and their importance can further enhanced by their group value.

The scheduled area comprises the remains described and areas around them within which related evidence may be expected to survive.

Source: Cadw

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