Digging under the Chiltern Hills has started today for the HS2 rail route.
A 10 mile tunnel will be dug under the Chilterns, in a bid to reduce the impact of the high speed trains going through the countryside, and instead will go underneath it.
The 2,000 ton machine, named Nightingale after local figure Florence Nightingale, will work non stop for 3 years.
It is the next step in the Phase 1 part of the construction, connecting London with the West Midlands.

Bucks Local Plan: Aylesbury MP raises concerns
Bucks Council launches final consultation on draft Local Plan
Aylesbury coach begins Commonwealth Games journey with Team England
Small Fire Temporarily Closes Aylesbury Recycling Centre
Spend a night under the stars at Waddesdon Manor to help tackle homelessness in Buckinghamshire
Police carry out co-ordinated searches targeting organised crime across Bucks
Newly installed raised table in Amersham to be replaced













