Ancient Monuments

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Benllech Megalith: Goosehouse

A Scheduled Monument in Llanfair-Mathafarn-Eithaf, Isle of Anglesey (Ynys Môn)

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Latitude: 53.3202 / 53°19'12"N

Longitude: -4.2247 / 4°13'28"W

OS Eastings: 251911

OS Northings: 382666

OS Grid: SH519826

Mapcode National: GBR HMYX.MLM

Mapcode Global: WH53M.2TJ2

Entry Name: Benllech Megalith: Goosehouse

Scheduled Date: 16 July 1964

Source: Cadw

Source ID: 257

Cadw Legacy ID: AN094

Schedule Class: Unassigned

Category: Unclassified site

Period: Prehistoric

County: Isle of Anglesey (Ynys Môn)

Community: Llanfair-Mathafarn-Eithaf

Built-Up Area: Benllech

Traditional County: Anglesey


A probable prehistoric burial chamber consisting of a capstone 2.8 m by 1.7 m by 0.4 m thick, supported on dry-stone walling on the W and S sides and a single orthostat on the N side. The E side is open. The walls rest directly on the limestone bedrock, and the underside of the capstone is 0.48 m above the bedrock. A smaller chamber lies to the S, which in turn is linked to two upright slabs of limestone.

The site was excavated in 1965. No prehistoric finds were recovered but the site was considered to be prehistoric because of its physical affinities with the chambers at Lligwy and Glyn. The additional chamber to the S is a modern addition.

The monument is of national importance for its potential to enhance our knowledge of prehistoric funerary and ritual practises. It retains significant archaeological potential, with a strong probability of the presence of associated archaeological features and deposits. The structures themselves may be expected to contain archaeological information concerning chronology and building techniques.

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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