Blue Crags Hillfort (Chollerton) - Source of Reference
(2) Ball, T. 1927. Proceeding of the Society of Antiquaries of Newcastle (4th Series) 2, 23-4
(3) Unpublished sources were used to create this record. For further information about these sources please contact us quoting the following reference number:N9202.
(4) Further information about the protected nature of this monument can be found here.