Harefield, UK. 27th April 2019. Environmental activists from Colne Valley Action sit in trees alongside Harvil Road to prevent their felling as part of work scheduled for this weekend for the HS2 project. The Colne Valley is an area of natural beauty and large areas of trees have been felled there for HS2 in recent weeks. Protesters based at the Harvil Road Wildlife Protection Camp are seeking to prevent further destruction.