4 - Eyri (Snowdonia) National Park - Views
Moel Hebog - Siliceous Nodules - 1
At an altitude of 556m - a section of the base of the rocky eastern face of Moel Hebog.
The unit is part of the Volcanic - Pitts Head Tuff Formation (450 million year old)
A distinctive band of Siliceous Nodules , with Columnar Jointed Tuff below.
The Nodules formed when Superheated Steam dissolved Silica which then recrystallized.
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Location : a footpath from Beddgelert climbs straight up Moel Hebog .
Then a trek across the upper moorland to the site.
Ref: NW 2353
Date: 04/06/2023
Location: SH 5684 4692
