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The Border Mires

Border Mires is the name given to a collection of peat bog sites in and adjacent to Kielder Forest, of which there are 58 separate sites. Access to many of these is difficult due to their remote location and often requires a long walk over difficult terrain.

The majority are owned by Forest Enterprise and managed by a group of partners, including Northumberland Wildlife Trust. The Border Mires are largely made up of deep lenses of peat in larger areas of blanket bog - peat stores carbon and reduces the effect of global warming, and can be up to 15m deep in places. Plants such as sundew, cranberry, cotton grasses and sphagnum moss are prevalent. Many pools are home to a variety of insects such as the black darter, common hawker and golden-ringed dragonflies. Frogs are frequent while toads and palmate newts are a little less common.The large heath butterfly is a specialist of these bog sites - June and July are good months to see them. The sites in and around Kielder Forest store more water than the reservoir and release it steadily, moderating flows and reducing flash floods.

Nearby nature reserves

Bell Crag Flow
4 miles - Northumberland Wildlife Trust
Butterburn Flow
6 miles - Northumberland Wildlife Trust
Falstone Moss
6 miles - Northumberland Wildlife Trust

Nature reserve map

Reserve information

Over a wide area, in Kielder Forest
Kielder Forest
NE48 3EB
Map reference
Best time to visit
Jul - Sep
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Opening Times
0.00 hectares
Permit required

Walking information
Walk with care as there may be hidden pools and ditches
Contact Forestry Commission
Dogs must be on lead
Grazing animals
Reserve manager
Northumberland Wildlife Trust
Tel: (0191) 284 6889