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National nature reserve is a United Kingdom government conservation designation for a nature reserve of national significance for biological or earth science interest.

The term was first introduced in the National Parks and Access to the Countryside Act 1949 which gave the Countryside Commission and Countryside Commission for Scotland the powers to designate reserves.

[edit] National Nature Reserves in the United Kingdom

• National Nature Reserves in England
• National Nature Reserves in Scotland
• National Nature Reserves in Wales
• National Nature Reserves in Northern Ireland