Marianne has been the director of Fondation Actions Environnement (FAE) for over 30 years. She first launched her “Dry-Stone Wall Construction” initiative in 1994. Every year, she runs sessions for around 3,000 people across Switzerland on themes as varied as tree-planting, forest and nature reserve management, dry-stone wall construction, and path and trail restoration. Since 1994, over 40,000 m² of dry-stone walls have been built or restored across Switzerland, overseen by the FAE’s specialists and with the support of volunteers. In parallel, Marianne published a reference book on the subject in 2014: Trockenmauern – Grundlagen, Bauanleitung, Bedeutung, which required six years of preparation and research.
The FAE aims to protect nature and preserve Switzerland’s historic landscapes. The foundation protects endangered natural spaces and ensures cultural landscapes are preserved by rolling out volunteer projects across Switzerland. The FAE has become a national centre of expertise in dry-stone walls. The foundation’s other objective is to educate teenagers and adults about the importance of respecting nature. The FAE lends its support to disadvantaged regions, with volunteers playing a key role in supporting mountain villages and communities as well as alpine pasture companies. Working together for the common good is one of the FAE’s core values.