Rowlee Bridge

Site of Special Scientific Interest · 53.3992, -1.7808

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Also within

Derbyshire County PEAK DISTRICT National Park

Condition (Natural England)

Favourable (1)
UnitFeatureConditionArea (ha)Assessed
SK146891 — Favourable 0.99 2008-03-28

Habitats

Fast flowing river and stream

Geology & landscape

Geological Period: Carboniferous

Description

Area, 1.1 ha. 2.7 ac. Description At this site, Edale Shales and Mam Tor Sandstones, of Upper Carboniferous age, on the southern bank of the River Ashop are thrown into sharp, symmetrical, straight limbed folds. The process giving rise to these structures is known as valley bulging and occurs where soft strata in this case the Edale Shales are forced upwards in a valley by the weight of the overlying hill masses, on either side. The folding results from the compression and buckling of the strata during the bulging process. This site shows what are probably the best examples of such structures currently known in Britain.

Plant communities

A9 — Fast flowing river and stream, Marginal and inundation, Pond ditch and canal, Sluggish river and stream

Potamogeton natans community

Schoenoplectus lacustris, Juncus bulbosus, Sparganium angustifolium, Sparganium erectum, Sparganium minimum, Alisma plantago-aquatica, Lobelia dortmanna, Equisetum fluviatile, Myriophyllum alterniflorum, Elodea canadensis, Lemna minor, Lemna trisulca, Nymphaea alba, Callitriche platycarpa, Callitriche stagnalis, Littorella uniflora, Potamogeton natans, Ranunculus trichophyllus, Glyceria fluitans, Chara subspinosa

A14 — Fast flowing river and stream

Myriophyllum alterniflorum community

Isolepis fluitans, Juncus bulbosus, Fontinalis antipyretica, Lobelia dortmanna, Equisetum fluviatile, Myriophyllum alterniflorum, Lemna minor, Callitriche stagnalis, Littorella uniflora, Potamogeton filiformis, Potamogeton gramineus, Potamogeton natans, Ranunculus peltatus, Chara spp., Nitella hyalina

A17 — Chalk river and stream, Fast flowing river and stream

Ranunculus penicillatus ssp. pseudofluitans community

Berula erecta, Nasturtium officinale, Elodea canadensis, Lemna minor, Callitriche stagnalis, Veronica beccabunga, Polygonum amphibium, Polygonum hydropiper, Potamogeton crispus, Potamogeton pectinatus, Ranunculus penicillatus ssp. pseudofluitans

A18 — Fast flowing river and stream

Ranunculus fluitans community

Fontinalis antipyretica, Fontinalis squamosa var. curnowii, Myriophyllum alterniflorum, Myriophyllum spicatum, Elodea canadensis, Mentha aquatica, Lemna gibba, Lemna minor, Potamogeton perfoliatus, Ranunculus fluitans, Glyceria fluitans, Phalaris arundinacea