The Otterburn Ranges

'Otterburn Training Area is situated in the Northumberland National Park ... Otterburn Training Area consists of over 22000 hectares of land and is the largest single live firing range in the UK. Some 30,000 soldiers use the area each year. The training area covers 23% of the National Park and consists of rolling uplands forming part of the Cheviot foothills ... ' 'It is the shared aim of the Northumberland National Park and the MoD to encourage as much access to the area as possible. You are free to use the rights of way and access land to the north of the River Coquet at all times - this is the dry training area where there is no live firing.'

Ministry of Defence