Simonburn Castle
Access unclearno public right of way confirmed — check locally before setting out
Substantial ruinsruined, but plenty survives above ground
Simonburn Castle is one of 32 castles the Albion Guide lists in Northumberland. Haydon Bridge Station is 9.4 km away to the south. Nearby castles include Bastles at Chesterwood and Bastle at Grandy's Knowe.
More at the National Heritage List entry