Milecastle 21, Hadrian's Wall
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Facts and practical information
Milecastle 21 was a milecastle of the Roman Hadrian's Wall. The site was identified by measurement only, as the milecastle's remains have been totally removed. This is probably due to extensive quarrying at the site, which now lies under pasture. ()
Coordinates: 55°0'40"N, 1°59'56"W
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Hadrian's Wall
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Day trips
Milecastle 21 – popular in the area (distance from the attraction)
Nearby attractions include: Halton Castle, Portgate, Hunnum, Milecastle 20.
Frequently Asked Questions (FAQ)
Which popular attractions are close to Milecastle 21?
Nearby attractions include Hunnum, Hadrian's Wall (8 min walk), Halton Castle, Hadrian's Wall (13 min walk), Portgate, Hadrian's Wall (24 min walk).