Cawfields Roman Wall - Hadrian's Wall

Cawfields preserves a high, exposed stretch of Hadrian's Wall across the crags of the Whin Sill, with Milecastle 42 near an abandoned quarry and turret foundations further east. Built as part of Rome's northern frontier, the wall follows the rock rather than a convenient level line, making its defensive purpose easy to understand. The masonry at Thorny Doors rises to around three metres, among the tallest sections still standing. Visitors particularly enjoy the open views and the chance to examine a milecastle without a long approach from the road. Start at the quarry car park, where there are toilets, then allow for a short, steep climb onto the ridge. Sturdy footwear is useful on the uneven slopes, and the exposed setting calls for a weatherproof layer. The official Housesteads Roman Trail includes this section and opportunities to walk along the wall.