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Town Walls

Glacial cobbles

  • Igneous
  • Volcanic Rocks
  • Ordovican

Location Details

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Location of Geological Feature
The core of the section of wall along Hole-in-the Wall Street is visible and constructed of rounded glacail boulders, predominantly of locally derived volcanic rocks from Snowdonia.
Rock Type
Volcanic Rocks
Geological Age
Ordovican
Quarry Location
Collected from local till deposits.
Category
Igneous
Nearest station
Bangor
Address
Castle Ditch LL55 2AU
Date of build
13th Century
Find out more
Stone identified by Ruth Siddall
Town Walls — Glacial cobbles
Glacial cobbles at Town Walls
Glacial cobbles at Town Walls (detail 2)
Glacial cobbles at Town Walls (detail 3)
    Entry submitted by Ruth Siddall

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