National Nature Reserve
Cassop National Nature Reserve
Regulations on 30 October 2026
Signs at the site and later resolutions prevail; check the source.
These hold everywhere inside the boundary, whether or not a site is marked.
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Permit required
Hiking · All year
In force on 30 October 2026
Cassop NNR is one of the best magnesian limestone grassland sites in County Durham. […]
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Management: Natural England
Access is by permit only.
Published by Natural England, 5 Mar 2021 · Durham's National Nature Reserves