The reservoir was constructed in the 1870s to supply water to the growing industrial city of Bradford.
The water depth at the embankment reaches approximately 70 feet.
Fewston Reservoir is part of a complex that also includes the Lindley Wood, Swinsty, and Thruscross reservoirs.
The valley area was historically used for milling, and remnants of old foundations can occasionally be seen when water levels are significantly low.
The site is designated as a significant area for local biodiversity and is monitored for its wetland bird populations.
Fewston Reservoir is a large man-made water body in the Washburn Valley, managed by Yorkshire Water as part of a chain of four reservoirs. The primary walking trail forms a 4-mile (6.4 km) circuit around the perimeter, featuring a mix of woodland paths and gravel tracks. It is physically connected to the adjacent Swinsty Reservoir via a narrow causeway, allowing for combined longer walking routes. The reservoir serves as a significant water supply facility for the surrounding region. The terrain varies from flat sections to moderate inclines, particularly near the dam embankment. Birdlife is abundant, with regular sightings of moorhens, tufted ducks, and geese. The site is a key destination for local hikers and trail runners due to its consistent accessibility.
The top of the embankment wall looking south across the expanse of the reservoir toward the woodland edges.
The path surface can become muddy and slippery in sections after heavy rainfall; waterproof footwear is essential.
Combine the Fewston loop with the adjacent Swinsty Reservoir path for an extended 8-mile hike.
Parking areas can reach full capacity on sunny weekends and bank holidays, so consider arriving early in the day.
Attempting the full circuit without proper sturdy footwear or expecting modern amenities like cafes directly on the trail.
Keep dogs on leads near grazing livestock, carry out all litter, and stick to marked footpaths to protect nesting habitats.