Garreg-ddu Reservoir, reservoir in Powys, Wales, United Kingdom
Garreg-ddu Reservoir is an artificial lake near Rhayader in Wales. It fills a mountain valley with deep, dark water bordered by evergreen forests and rocky slopes on all sides.
The reservoir was built in the mid-1900s to supply water to industrial towns in the region. It forms part of a system of interconnected dams and lakes that work together to manage water flow across Wales.
The site is reached by a narrow mountain road that winds through the valley, with viewing points along the way. The weather here changes quickly, so bring a windproof jacket and wear sturdy shoes for walking on uneven ground.
The water here is distinctly dark and peaty, colored by the moorland that surrounds it. This natural tint gives the lake its moody appearance, which shifts throughout the day depending on light and weather.
Location: Rhayader
Address: The, Elan Valley, Rhayader LD6 5HS, UK
Phone: +441597811515
Website: https://elanvalley.org.uk
GPS coordinates: 52.26667,-3.60000
Latest update: December 6, 2025 19:06
Wales features a region with three national parks, including Brecon Beacons and the Pembrokeshire coast park, as well as fortresses like Conwy and Caernarfon castles built by Edward I in the 13th century, and religious buildings such as St. David's Cathedral. The coastline alternates between red sandstone cliffs, sandy beaches, and islands like Anglesey, while the inland reveals mountains, lakes, and valleys such as the Elan Valley with its historic dams. Welsh towns preserve their architectural heritage, with Cardiff as the capital. The Gower Peninsula offers limestone cliffs and sea caves, Tintern Abbey has been a Cistercian monastery since 1131, and Powis Castle features terraced gardens. Former mining regions and botanical sites reflect the country's industrial and cultural evolution.
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Penygarreg Dam & Valve Tower, Elan Valley
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Old Police Station and Magistrates Court, Bridge Street
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Carreg Ddu Viaduct And Submerged Dam
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Rhayader Library
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No 11 Elan Village
2.7 km
Bethel English Baptist Church
7.2 km
Foel Valve Tower, Elan Valley
336 m
Cwmdeuddwr Arms, West Street (N Side)
7 km
Penrally House
7.2 km
Bethany Chapel
7 km
Shelter and Fountain, Elan Village
2.4 km
No 9 Elan Village
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Caban-côch Reservoir
1.2 kmReviews
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