Craignethan Castle, Artillery fortress in South Lanarkshire, Scotland.
Craignethan Castle is an artillery fortress in South Lanarkshire positioned above the Nethan River near Crossford village. The central tower house stands within rectangular defensive walls reinforced by corner towers, with a stone-vaulted shooting gallery beneath the main structure.
Built in 1530 by James Hamilton, the King's Master of Works, who was responsible for designing military structures across Scotland. It was constructed during a period when river defenses became increasingly important against advancing warfare techniques.
The site draws visitors interested in Scottish military innovation and engineering from centuries past. People explore how the fortification design reveals the practical methods used to defend this river location.
Visitors can explore the tower house, the stone-vaulted shooting gallery, and the remains of western ramparts that protected the main structure. The site is set in a green valley and can be walked through, though sturdy footwear is recommended due to uneven ground.
The castle features Britain's rare caponier, a covered passage built into the defensive ditch where soldiers could fire muskets at approaching enemies. This underground defensive element was an innovative feature for its era and remains uncommon to see in this country.
Location: South Lanarkshire
Location: Lesmahagow
Inception: 1500s
Website: https://historicenvironment.scot/visit-a-place/places/craignethan-castle
GPS coordinates: 55.69656,-3.88532
Latest update: December 8, 2025 19:45
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