Waterside Colliery

Overview

The operational hub -- washery, locomotive shed and railway network -- serving the Dalmellington Iron Company's coal and ironstone workings in the Doon Valley, developed from 1848 and now preserved as a heritage railway.

History

Waterside grew up around the Dalmellington Ironworks at Dunaskin, established in 1848 by Henry Houldsworth, and became the operational centre -- rather than a single named shaft in its own right -- for the Dalmellington Iron Company's wider coal and ironstone-mining operations in the Doon Valley, served by its own railway station and, from 1893, signal box. The Company worked numerous individual, mostly numbered pits across the district, among them the Downieston, Burnfoot and Drumgrange ironstone workings, ranging from 16 to 62 fathoms deep. The Dunaskin blast furnaces themselves closed in 1921, but coal mining in the district continued for decades afterward under the National Coal Board, whose Waterside system became one of the largest private railway networks in Scotland, latterly serving the deep mines of Minnivey and Pennyvenie -- Minnivey ceasing coal production in 1976, and Pennyvenie, the last deep mine in the area, closing in 1978, when the railway itself also closed. Opencast coal continued to be handled through the site until 1986. The former ironworks and colliery site at Waterside is now preserved by the Ayrshire Railway Preservation Group, founded in 1974, which took over the derelict Minnivey site in 1980 before relocating to Dunaskin in 2002 and rebranding as the Doon Valley Railway in 2019, a registered Scottish charity operating a heritage railway, workshops and museum on the site today.

Workings

Served as the washery, locomotive shed and railway hub for a district of numbered Dalmellington Iron Company coal and ironstone pits, rather than working a single named shaft of its own.

Closure

The Dunaskin ironworks closed in 1921; the NCB's associated railway network closed in 1978 alongside the deep mine Pennyvenie, though opencast coal continued to be handled at the site until 1986.

What remains

Preserved by the Doon Valley Railway (formerly the Ayrshire Railway Preservation Group), operating a heritage railway, workshops and museum on the former ironworks and colliery site.

Abandoned workings can be dangerous — unstable ground, uncapped shafts, flooding and bad air are common even where a site looks safe from the surface. This entry describes history and general location only; it is not an access guide.

Recorded claims

Individual factual claims, each attached to the source(s) that support it below. Where sources disagree, both are kept.

• Waterside grew up around the Dalmellington Ironworks at Dunaskin, established in 1848 by Henry Houldsworth, and became the operational centre for the Company's wider coal and ironstone workings in the district, which included the numbered Downieston, Burnfoot and Drumgrange pits, ranging from 16 to 62 fathoms deep. ¹
• The Dunaskin blast furnaces closed in 1921; the National Coal Board's Waterside railway system, one of the largest private networks in Scotland, closed in 1978 alongside the deep mine Pennyvenie, though opencast coal continued to be handled at the site until 1986. ^1,2
• The Ayrshire Railway Preservation Group, founded in 1974, took over the derelict Minnivey site in 1980, relocated to Dunaskin in 2002, and rebranded as the Doon Valley Railway in 2019, operating a heritage railway, workshops and museum on the former ironworks and colliery site. ²

Sources

1. (secondary) Dalmellington Iron Company — RAILSCOT
2. (secondary) Ayrshire Railway Preservation Group / Doon Valley Railway — Doon Valley Railway

Record created: 31 August 2026 · Last researched: 31 August 2026