4.03mi Holmbridge & Digley Reservoir Walk

Feb 3, 2023

4 min read

Updated: Oct 23

Digley Reservoir lies above Holmbridge in the Holme Valley, southwest of Holmfirth. Our 4.03-mile Holmbridge & Digley Reservoir Walk is the original recorded circuit, with its Komoot map directly beneath the linked mileage-first title. The map provides the route; it should not be confused with Yorkshire Water's separate 1.5-mile and 5.5-mile Digley walks.

Walk at a Glance

Distance: 4.03 miles, from the White Shire's original Komoot tour.

Type: Circular route in the Holmbridge and Digley Reservoir area of West Yorkshire.

Start and finish: As marked on the embedded original GPS recording above.

Parking nearby: Yorkshire Water provides free spaces at Digley Quarry Car Park (HD9 2QD) and Digley South Car Park (HD9 2RX), with only 39 spaces in total. These are reservoir visitor car parks, not a verified starting point for this particular 4.03-mile track.

Digley and Bilberry: Two Reservoirs, Different Histories

There are two named reservoirs here: Digley, the larger body of water, and Bilberry, its smaller neighbour higher in the valley. Both belong to the history of water supply in the hills above Huddersfield. Yorkshire Water's own visitor information describes two distinct official circuits: a shorter 1.5-mile Digley walk and a 5.5-mile Digley, Bilberry and beyond route.

Our recorded route is 4.03 miles. Neither of those published walks is a substitute for the GPS line above, and the descriptions of steps, gates or slopes on Yorkshire Water's routes cannot automatically be applied to this one.

Digley's present landscape has been shaped by reservoir engineering. Water was held behind an embankment, roads and tracks were adjusted, and stone from nearby quarries helped construct the dam and associated structures. There is still a strong sense of the Pennine hillside in the land around the water.

The Quarries Above the Water

The West Yorkshire Geology Trust has documented the rocks and disused quarries around Digley. Its guide describes the local beds of Millstone Grit, formed from sand and mud laid down in an ancient river-delta environment during the Carboniferous Period. The hard sandstone was useful for walls, paving and local construction.

Bingley Quarry was worked during the late nineteenth century and Alison Quarry was another source of stone. The geology trust records that the quarries were used again in the 1940s to supply stone for building Digley Dam. The name Digley Quarry Car Park is therefore a reminder of actual stone extraction, not simply a modern parking label.

The quarry faces provide clues to the much older history beneath the moors. Different sandstone and mudstone layers reflect changing ancient watercourses and sediment deposits, while the disused workings reveal how people exploited those rocks for building materials.

Bilberry Reservoir and the 1852 Flood

Bilberry Reservoir has a particularly sombre place in the history of the valley. In the early hours of 5 February 1852 its dam failed, sending floodwater down the Holme Valley. Historical accounts record 81 deaths, with homes and mills destroyed or damaged along the river.

The disaster happened long before the present Digley dam was built, but it is inseparable from the story of water storage above Holmbridge. The way dams were built, inspected and maintained became an urgent public question after catastrophes such as this.

Historic accounts of the flood explain the scale of loss further down the valley, including at Hinchliffe Mill and Holmfirth. It is a reminder that reservoirs were created to support communities and industry, but their engineering has always demanded careful oversight.

Digley Brook and the Living Landscape

River Holme Connections, the local river conservation organisation, describes Digley Dike as a tributary flowing from the hills through the reservoir area and down to the River Holme. The streams cut through Upper Carboniferous rocks before reaching the lower valley.

Its habitat account records heather and cotton grass on higher land, bilberry on the valley slopes, and oak and birch closer to the lower brook.

The group also works to control invasive species including Himalayan balsam and Japanese knotweed on the River Holme system. The river, streams and reservoir margins are a connected environment, even where engineered banks and older quarries have changed the land.

Current Access and the Recorded Route

Yorkshire Water publishes access updates on its Digley Reservoir page, including temporary works around Bilberry Reservoir. Its spring 2026 notice concerned embankment investigations and a temporary closure; that notice should not be assumed to describe present-day access without checking for a later update.

The separate official Digley walk has its own signed start at Digley Quarry Car Park. The geology, flood history and conservation information explain the area without inserting extra stops into the GPS circuit.