Change swamping Northern hills

• Write numbers in a chain
• Trees covering space by northern English hills
• Alpine range
• The 'backbone of England'
• Coppers surround northern mountain range

Wikipedia Word definitions in Wikipedia
The Pennines , also known as the Pennine Chain or Pennine Hills , are a range of mountains and hills in Northern England separating North West England from Yorkshire and North East England . Often described as the " backbone of England", the Pennine hills ...