Grwyne Fawr

Grwyne Fawr is 4 km long, and has a stream level of 0.

Map of Grwyne Fawr

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Distributaries / Outflows

Grwyne Fawr flows into the sea: 38 km flows in at N 51° 52′ 50″, W 3° 2′ 37″ at OSM node n11426885115. 4 km flows in at N 51° 52′ 50″, W 3° 2′ 37″ at OSM node n11426885115. Grwyne Fawr flows into River Usk , which it joins at N 51° 50′ 10″, W 3° 6′ 40″ at OSM node n21584548, and there 1,406 km of total upstream flows in.

Tributaries

Grwyne Fawr has 14 tributaries.

Grwyne Fechan, which joins it at N 51° 52′ 17″, W 3° 5′ 48″ at OSM node n389956256, and 91 km of total upstream flows in.

(unnamed), which joins it at N 51° 58′ 9″, W 3° 7′ 4″ at OSM node n2323526721, and 9 km of total upstream flows in.

Cwm Grigws-isaf, which joins it at N 51° 58′ 8″, W 3° 6′ 54″ at OSM node n390416941, and 2 km of total upstream flows in.

Nant yr Helyg, which joins it at N 51° 57′ 44″, W 3° 6′ 15″ at OSM node n390416761, and 2 km of total upstream flows in.

(unnamed), which joins it at N 51° 57′ 20″, W 3° 5′ 46″ at OSM node n390416742, and 2 km of total upstream flows in.

Nant y Gwerydd, which joins it at N 51° 55′ 12″, W 3° 4′ 5″ at OSM node n390419165, and 2 km of total upstream flows in.

(unnamed), which joins it at N 51° 52′ 26″, W 3° 4′ 43″ at OSM node n390414709, and 2 km of total upstream flows in.

(unnamed), which joins it at N 51° 52′ 4″, W 3° 6′ 16″ at OSM node n389956260, and 2 km of total upstream flows in.

Cwm Trethiw, which joins it at N 51° 57′ 1″, W 3° 5′ 24″ at OSM node n11426884534, and 1 km of total upstream flows in.

(unnamed), which joins it at N 51° 55′ 12″, W 3° 4′ 3″ at OSM node n390416526, and 1 km of total upstream flows in.

(unnamed), which joins it at N 51° 52′ 5″, W 3° 6′ 13″ at OSM node n389956259, and 917 m of total upstream flows in.

(unnamed), which joins it at N 51° 52′ 30″, W 3° 4′ 20″ at OSM node n11426884323, and 739 m of total upstream flows in.

(unnamed), which joins it at N 51° 58′ 8″, W 3° 6′ 52″ at OSM node n389956117, and 619 m of total upstream flows in.

(unnamed), which joins it at N 51° 57′ 3″, W 3° 5′ 29″ at OSM node n8790184163, and 532 m of total upstream flows in.