Gilwern by the Canal: Walking Routes and Industrial Heritage

Gilwern Between the Canal and the Gorge

Gilwern connects the Monmouthshire & Brecon Canal with the nearby Clydach Gorge as two distinct themes for a stay. The canal flows through the town, and walks are possible along its towpath. The wooded gorge was formed by the River Clydach; three walking routes to explore it each start at the Clydach Ironworks site. This means canal-side walks and routes into the gorge are two distinct options.

Canal and Railway History

The 24 m-high Gilwern Embankment carries the Brecknock and Abergavenny Canal across the Clydach Gorge. At the northern end of the embankment, a tunnel carries the Glangrwyne section of the Clydach Railroad. These serve two different purposes: the embankment carries the canal across the gorge, while the tunnel carries the railway section. The 24 m height gives a sense of the scale of the canal structure, while its position at the northern end places the tunnel within the embankment. Canal and railway construction can thus be viewed as distinct aspects of transport history.

Construction of the Brecon Canal began near Gilwern in 1796. The Clydach Ironworks add to the story: their horse-drawn tramroads transported finished iron to the canal at Gilwern. The canal is therefore not just a structure, but also the destination for goods transport. The date places the start of canal construction in time; the transport of finished iron shows another side of the region’s transport history. While the embankment carries the canal across the gorge, the information about the tramroads describes the route taken by the iron to the canal. In this way, construction history and goods transport offer distinct perspectives.

Walking Routes and Industrial History

Nearby, you can visit the remains of the Clydach Ironworks; there is parking and a picnic area on site. The Ironworks site is also the shared starting point for the three walking routes that explore the gorge. This brings visits to the remains and access to the gorge routes together at one named location. The towpath offers a different walking option: it follows the canal as it flows through Gilwern. When planning your stay, you can consider the industrial history at the Ironworks site and walks by the canal as distinct focuses. The walking routes, by contrast, are intended for exploring the wooded Clydach Gorge.

Picnic Area and Paved Path

In April 2025, improvements to the paths and the addition of a wheelchair-accessible picnic area enhanced Gilwern’s picnic area. An upgraded path in Gilwern is paved and offers better year-round accessibility. As facilities and the physical condition of the path may change, check the accessibility of the picnic area and the condition of the path before your visit. This will help you take these specific conditions into account when planning.

Discover more destinations: Monmouth, Abergavenny, Penperlleni, Caerwent, Govilon, Llangattock-Vibon-Avel, Llanishen, Llandogo

For the wider travel overview: Monmouthshire.