Anglesey has such special geology that it is recognised by UNESCO as a "global geopark" – a place where the rocks, fossils, landscapes are world-class. Whether you are a geologist or simply enjoy natural beauty and landscape, Anglesey is one of over 200 Geopark sites in the world and more recently recognised as one of the top 100 geosites in the world!

The name GeoMôn is a combination of ‘Geo’ for all things geological /geographical / environmental and ‘Môn’, the Welsh language name for Anglesey.

GeoMôn is a place with spectacular geological heritage stretching back almost 2,000 million years (nearly half the life of our planet) and more than 100 rock types. It is home to the oldest fossils in England or Wales. Each rock type creates its own landscape either from its own characteristics, or from the way it reacts to the forces of erosion, or by how it weathers to form soils which underpin biodiversity and land use. All of Anglesey is recognised as part of GeoMôn Geopark.

Stunning rocky cliffs, extensive sandy beaches, small rocky coves, sand dunes, mud flats, salt marshes and farmland are all found in GeoMôn. A wide variety of ancient monuments, castles and settlements, of quarries and mines are indicators of the human exploitation; the human landscape is defined by building stones influencing architecture and by soils influencing agriculture and forestry.

Our mission

Our mission is to enhance knowledge and awareness of Anglesey’s spectacular geoheritage as a resource for education at all levels from primary school to university researchers including the general public and for recreation for both visitors and residents of the island and thereby to improve the local economy and employment prospects on the island.

We aim to encourage awareness of, and educate about, the geodiversity and geoheritage, the historical, cultural and economic importance of the area, and encourage further geological and related research.

Our visitor centre in the historic Porth Amlwch has displays of all the major rock types of Anglesey, information on the wider geology and temporary displays - the current focus is on climate change ancient and modern.

Explore

Join us to explore and discover this outstanding geo-heritage, which underpins all aspects of landscape development, biodiversity, land use, human history, agriculture and even culture.

Explore our listed geosites; follow our self-guided trails or join on one of our guided walks