Nant Mawr is a small upland stream in Wales, typical of moorland watercourses with fast-flowing sections and rocky substrate. The river offers an intimate fishing experience in scenic surroundings, with good holding pools in places despite its modest size. Conditions can vary significantly with rainfall, making it more productive during wetter periods.
Anglers should note the close season on Nant Mawr: 15 March – 15 June (rivers, England & Wales). Club membership or day ticket access is required in addition to your EA rod licence on most stretches.
Water level data from the Environment Agency Real Time Flood Monitoring API. Nearest gauging station. Always verify conditions on arrival.
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Nant Mawr holds brown trout, brook trout, bullhead, stone loach.
An EA rod licence is required by law to fish Nant Mawr. Club membership or a day ticket is also required on most stretches.
To fish Nant Mawr, you need a valid EA rod licence, available online from gov.uk. Annual, day and 8-day licences are available. In addition to the rod licence, you will need club membership or a day ticket from the controlling angling club or riparian owner for most stretches of Nant Mawr.
Always check conditions before you visit. Water quality, access and rules can change seasonally. The EA's Catchment Data Explorer provides up-to-date water quality information for Nant Mawr.
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