Glen Auldyn is a narrow valley about long on the

Isle of Man The Isle of Man ( , also ), or Mann ( ), is a self-governing British Crown Dependency in the Irish Sea, between Great Britain and Ireland. As head of state, Charles III holds the title Lord of Mann and is represented by a Lieutenant Govern ...

, with a river of the same name. This flows in a NNE direction and flows into the

River Sulby River Sulby or Sulby River can refer to one of two rivers on the Isle of Man: * The longest river on the island, rising on Snaefell near the Sulby Reservoir and running north through Sulby Glen and then east, for 18 kilometers, before reachin ...

not far from its estuary, near

Ramsey Ramsey may refer to: Companies *Ramsey (retailer), Turkish clothing retailer People * Ramsey (given name), including a list of people with the given name * Ramsey (surname), including a list of people with the surname * Baron de Ramsey, a title i ...

. It is entirely within the parish of

Lezayre Lezayre ( ; ), formally Kirk Christ Lezayre, is one of the seventeen historic parishes of the Isle of Man. It is located in the north of the island (part of the traditional ''North Side'' division) in the sheading of Ayre. Administratively, par ...

. The lower one-third of the valley is inhabited and is partly followed by the B16 road. This section is overlooked by Sky Hill. The middle section of the valley contains a ribbon of mature oak woodland. Glen Auldyn

The valley contains the small church of St Fingan. Glen Auldyn Chapel - geograph

In the valley is an underground reservoir with a capacity of around which supplies the north and east of the island. In May 2025,

Manx Wildlife Trust Manx Wildlife Trust (MWT) was founded on 6 March 1973 and is the Isle of Man’s leading nature conservation charity. As of May 2025, MWT manages 32 nature reserves, including the Calf of Man Calf of Man ( ) is a island, off the southwest c ...

announced that they had purchased 455 hectares (1124 acres) of land in the upper parts of Glen Auldyn, including the moorland to the west, to create a new nature reserve where

temperate rainforest Temperate rainforests are rainforests with coniferous or Broad-leaved tree, broadleaf forests that occur in the temperate zone and receive heavy rain. Temperate rainforests occur in oceanic moist regions around the world: the Pacific temperate ...

will be restored. This forms Manx Wildlife Trust's 32nd and largest Manx nature reserve.https://www.mwt.im/nature-reserves/glen-auldyn

References

Glen Auldyn Glen Auldyn is a narrow valley about long on the Isle of Man, with a river of the same name. This flows in a NNE direction and flows into the River Sulby not far from its estuary, near Ramsey, Isle of Man, Ramsey. It is entirely within the paris ...

Glens of the Isle of Man {{IsleofMan-geo-stub