HS2 campaigners say they are ready to launch an appeal if a high profile Judicial Review into the project doesn't go their way.
The judgements from the High Court hearings, which took place in December, are due to be announced soon. A leading judge is to rule on, among other things, whether the project's consultation and business case were carried out properly.
Campaigners in the Chiltern district say they are prepared to continue the fight even if the Judicial Review finds in favour of HS2 Ltd and the Department for Transport.
The announcement was made on Saturday as a new campaign shop was launched in Amersham.
The town's MP Cheryl Gillan told the Bucks Free Press at the shop opening: "I've heard from at least one part of the campaign against HS2 that they are already geared up to go for an appeal.
"There's a long way to go. There's a huge fight on our hands. This is a matter of principle and protection. If I can't defeat this project and the principle of it, I need to make sure we have the highest level of protection in terms of mitigation."
