Subcatchment:Tryweryn - Hesgin to Llyn Celyn

Catchment

River basin district	Dee
River basin	Upper Dee

Subcatchment

River name	Tryweryn - Hesgin to Llyn Celyn
Area category	10 - 100 km²
Area (km2)
Maximum altitude category	500 - 1000 m
Maximum altitude (m)	574574 m <br />0.574 km <br />57,400 cm <br />
Dominant geology	Siliceous
Ecoregion	Great Britain
Dominant land cover	Freshwater
Waterbody ID	GB111067051980

Location: 52° 56' 47.87" N, 3° 40' 35.51" W

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List of case studies in this subcatchment

Project title	Theme	Project status
Tryweryn Boulder and Gravel Addition	Fisheries Habitat and biodiversity Hydromorphology	Complete