From May 17 to 24, the Hautes Vosges will be hosting an exceptional edition of the Défis du Bois, a flagship event for young architects, engineers and journeymen. For the first time, the event will be held behind closed doors, in a natural setting. At the same time, Épinal’s ENSTIB is celebrating its 40th anniversary: an opportunity to highlight the structuring role of this engineering school at the heart of Wood Valley.