[1] The well-preserved earthworks outline two forts, one with an extension and a temporary camp built to an unusual plan.

[2] Archaeological investigation has also found indications of pre-Roman activity at the site and traces of later sunken dwellings (Grubenhäuser).

[3] J. R. Mortimer discovered a late Iron Age chariot burial here in 1905, and at least one other square barrow is known from the site.

[4] The site was acquired by the North York Moors National Park in 1983.

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