Mynydd Parys · Parys Mountain

Geotrail around Parys Mountain

Ffeithiau'r daith · Walk facts

Pellter · Distance

2 miles

Amser · Time

2–3 hours

Anhawster · Difficulty

Moderate

Math o daith · Route type

Circular (returns to the car park)

Man cychwyn · Start

Parys Mountain car park, beside the B5111

Cyfeirnod grid · Grid ref

SH 436 905

Cod post · Postcode

Dim yn y ffynhonnell · Not given by the source

what3words

Dim yn y ffynhonnell · Not given by the source

Parcio · Parking

Parys Mountain car park (GeoMôn). Charges: not stated by an official source.

Cyfleusterau · Facilities

Dim yn y ffynhonnell · Not given by the source

Cŵn · Dogs

Dim yn y ffynhonnell · Not given by the source

Tir · Terrain

Crosses rough and hazardous ground; wear strong shoes and keep to obvious paths; avoid pools of contaminated acidic water.

Hygyrchedd · Accessibility

Dim yn y ffynhonnell · Not given by the source

Gwiriwyd ddiwethaf · Last checked: 2026-11-01

Chwedl Mythôn · Mythôn legend

Parys Mountain's rocks are stained red, orange and gold by centuries of copper mining. It was once one of the largest copper mines in the world. In Mythôn legend those colours are scorch marks: Draig slept under the mountain through the long dark, and the coblynau, the mine knockers, tapped until it woke.

Beth i chwilio amdano · What to look for

• The viewing platform over the Great Opencast
• Stone-lined precipitation pits, where copper was won from the water with scrap iron
• The ruined Pearl engine house
• The windmill on the summit, near where the copper was found in 1768
• Choughs, skylarks and meadow pipits (Visit Anglesey)

Diogelwch · Safety

• Mounds around old shafts are particularly dangerous: stay on the obvious paths.
• A path into the Great Opencast is steep and slippery.
• Don't step in the precipitation pools: the water is acidic.

Dilynwch arwyddion a chyngor y ffynhonnell swyddogol bob amser · Always follow the signs and the official source's advice.