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January to March

1st January     Souterrain CL001004; Teergonean       

Cloud 75%: Wind WNW, F2: Rain Gauge 6mm: Visibility <20Nm. Ground wet: The Plan: continue develop souterrain construction theory. CL008-001004 is within a square enclosure; a cashel; SMR, CL008-001003, ITM 506840 x 698314. Its primary construction method seemingly obvious; a clint, or clints removed to create a trench among adjacent bedrock. Or, the builders utilized  a natural wide gryke. Though unlikely, considering the souterrain passage width. Searched north and south to locate if such “workable” clints existed; found same along 016° /019° Magnetic bearing from the souterrain passage. Two narrow clints, extend seventy metres north and south of the enclosure. The western clint measured as 0.4m wide, the eastern 0.3m wide. The grykes between vary from 0.09m to 0.15m. Maximum gryke depth measured was 1.3m; this coincides with the present height of the souterrain passage; allowing for the rubble covering the floor; present height a metre, width 0.95m. Prior to removal, breaking the limestone away from its footing below, may have involved leverage, or potentially, firesetting.

A cubic metre of Limestone weighs close to two and a half metric tonnes. Removing a one metre length of either clint required handling between 0.35 or 0.45 of a tonne.

This not uncommon geological feature would be a determining factor choosing an enclosures final location. The preparation for a souterrain implies a deep concern for refuge and welfare of the settlements non-combatants when threatened by hostile action. Such fears would require this form of souterrain to be constructed in concert with the enclosure.

Pat Cronin

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1st Jan 23 2.JPG

View north, narrow clints removed for souterain construction. Photo: Pat Cronin

1st Jan 23 1.JPG

Narrow clints in the wider landscape.

Photo: Pat Cronin


Awaiting your next log please. "Remember, if it's not written down it never happened"

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