Upper Teesdale is a Site of Special Scientific Interest (SSSI) in the west County Durham, England. It encompasses an extensive upland area that includes the headwaters of the River Tees and the surrounding catchment area upstream of the village of Langdon Beck.
The site has a diverse mix of habitats, mainly dry heath, with wet heath and blanket mire in areas that are poorly drained.
The Upper Teesdale SSSI is one of the most important botanical sites in Britain;
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the flora is exceptionally rich in species that are nationally rare, including some that are relicts of the arctic-alpine environment of the last glacial period.
The area supports internationally important populations of some wading birds and is home to several rare invertebrates.
Within the SSSI are several locations that are of national importance geologically, including one of only two known outcrops of 'sugar' limestone in Britain.
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The southern part of the SSSI largely coincides with the eastern portion of the Moor House-Upper Teesdale National Nature Reserve, which has been designated a 'Biosphere Reserve' by UNESCO. The entire area falls within the North Pennines Area of Outstanding Natural Beauty.
Much of Upper Teesdale SSSI was formerly designated as Upper Teesdale and Appleby Fells SSSI. Following a substantial revision in 1990, most of the site was divided between two new (but adjoining) SSSIs, Upper Teesdale in Durham and Appleby Fells in Cumbria. A small part was amalgamated with Moor House National Nature Reserve to form a third SSSI, Moorhouse and Cross Fell, which is contiguous with the other two. At the same time, two further SSSIs, Mill Beck Wood and Moking Hurth Cave, were incorporated into Upper Teesdale SSSI and ceased to exist as separate entities.
^ ab"Upper Teesdale SSSI : Reasons for designating the SSSI status" (PDF). Natural England. Retrieved 1 March 2022.
UpperTeesdale is a Site of Special Scientific Interest (SSSI) in the west County Durham, England. It encompasses an extensive upland area that includes...
former and Yorkshire. Large parts of Teesdale are within the North Pennines national landscape, and UpperTeesdale has been designated a Site of Special...
national nature reserves in Cumbria, including the large Moor House-UpperTeesdale reserve which is shared with County Durham. All national nature reserves...
village in County Durham, England. It is situated in upperTeesdale, between Forest-in-Teesdale and Harwood, halfway between Penrith and Durham. It is...
High Force is a waterfall on the River Tees, near Middleton-in-Teesdale, Teesdale, England. The waterfall is within the North Pennines Area of Outstanding...
water for industry and domestic use. Environmentally, this part of UpperTeesdale is of national importance and the plan to construct this reservoir had...
which defines the western edge of the area and also in an inlier in upperTeesdale. Unseen at the surface but proved in boreholes is the Weardale Granite...
Butterknowle is a village in Teesdale, County Durham, England. Butterknowle is situated between the market towns of Bishop Auckland (9 miles to the east)...
Limestone areas of the Pennines in the White Peak, Yorkshire Dales and UpperTeesdale have been designated as nature reserves or Important Plant Areas by...
Northumberland Lower Derwent Valley NNR, East Riding of Yorkshire Moor House-UpperTeesdale, Cumbria & County Durham North Meadow, Cricklade NNR, Wiltshire Old...
cliffs at Filey and the chalk cliffs at Flamborough Head. Moor House – UpperTeesdale, most of which is part of the former North Riding of Yorkshire, is one...
Support". Tees at Barnard Castle in Dales Area – Artificial influences "UpperTeesdale Geology". Archived from the original on 14 October 2013. Retrieved 16...
limestone. The largest reservoir in the Southern zone is Cow Green, in upperTeesdale, which is used solely to regulate flow in the River Tees. There are...
Natural Beauty and partly in Northumberland National Park and stretches from Teesdale northwards towards Berwick. It is one of the key natural features of the...
meandering lowland section of the Tees Valley. As the river flows through UpperTeesdale, it passes through the historic settlements of Piercebridge and Barnard...
UpperTeesdale, West Rigg Open Cutting Mineralogy – Close House Mine, Foster's Hush, Moorhouse and Cross Fell, Old Moss Lead Vein, UpperTeesdale, West...
St John's Chapel, County Durham with the B6277 near Langdon Beck in UpperTeesdale, County Durham. It is the equal highest paved pass in England with the...
nesting and wintering birds. Examples include unique alpine plants at UpperTeesdale and the field of snake's head fritillaries at North Meadow, Cricklade...
(1976) Bellamy's Europe (1976) Natural History of Teesdale Chapter 7 Conservation & UpperTeesdale' (1976) Botanic Action (1978) ISBN 978-0091341411 Botanic...
www.jncc.gov.uk. Joint Nature Conservation Committee. Moor House – UpperTeesdale. Archived from the original on 16 March 2006. Retrieved 10 July 2006...
Institute of Preventive Medicine. He researched soil microbes at Moor House-UpperTeesdale, the same location as his doctoral field work, and compared the surrounding...
poetical illustration by L. E. L. Moor House UpperTeesdale National Nature Reserve Explore North Pennines - Teesdale[permanent dead link] Map sources for Cauldron...
the unique "Teesdale Assemblage" of post-glacial plants. This may, in part, be due to the Pennine areas of Upper Weardale and UpperTeesdale being the site...
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