The ECN Data Centre

Site Information: Lochnagar

Sponsoring organisation(s)

Department for Environment, Food and Rural Affairs (through United Kingdom Upland Waters Monitoring Network)

Network(s) this site belongs to
UK Environmental Change Network
Upland Waters Monitoring Network

Site characteristics

Altitude m

The catchment area is indicated with a black line.
Click map to enlarge.

Area of Lake ha
Mean annual pH* 5.4
Mean annual water temperature* 6.3
* calculated from the ECN Data Centre database
Information held about this site
View a list of datasets collected at this site
View a list of publications about this site


Lochnagar lies at an altitude of 785 m in the centre of the granite massif which comprises much of Balmoral Forest. Lochnagar is a corrie loch and lies below a north- east facing steep backwall which rises to the summit of the same name. The loch is 9.8 ha in area with its deepest point at 24m, and drains north-east into a tributary of the River Dee. Snow-melt comprises a major input to the loch which regularly freezes each winter. The precipitous catchment (91.9 ha) is composed of biotite granite, overlain in places by blanket peat, but dominated by bare rock with extensive fields of large boulders and coarse screes. The sparse moorland vegetation of the catchment is dominated by a community of stunted Calluna (heather) and Vaccinium (bilberry). The catchment is above the limit for summer sheep grazing in the region, and there is no evidence for any land-use change or active land management.

Lochnager is classified as having moderate acid deposition.

Upland Waters Monitoring Network


Related links



Mr Ewan Shilland

Environmental Change Research Centre, Department of Geography, University College London, Pearson Building, Gower Street, London, WC1E 6BT

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