Underground Mountain Festival

Underground Mountain Festival: Electro Goes Green

Since 2019, the Underground Mountain Festival has carved out a unique niche in the Alsatian festival scene by combining electronic music and ecological commitment. Located on the edge of the Étang du Nonnenhof in Haguenau, bordering Europe's largest lowland forest, this festival offers a unique immersive experience where music dialogues with nature.

Three Days of Electronic Music

Over a full weekend, the Underground Mountain Festival unfolds a rich and varied electronic program: non-stop DJ sets, live concerts, ambient and experimental sets. The festival showcases local and emerging talents as well as established artists from the electronic scene. The morning musical brunches extend the experience in a relaxed and friendly atmosphere.

An Eco-Responsible Festival

Environmental commitment is at the heart of the Underground Mountain Festival's identity. Certified level 3 by Eco-Manifestations Alsace, the festival implements exemplary practices: waste management, carbon footprint reduction, and public awareness of ecology. Each edition explores an environmental theme — in 2025, the circular economy and material reuse — which is reflected in the workshops, stands, and site's scenography.

An Exceptional Natural Setting

The Étang du Nonnenhof, located on the road to Schirrhein in Haguenau, offers a remarkable natural setting on the edge of the Haguenau forest. This body of water surrounded by greenery creates a peaceful atmosphere that contrasts with the energy of electronic music, offering festival-goers a total change of scenery just minutes from the city center.

Workshops and Activities

Beyond music, the festival offers DIY workshops (Do It Yourself), eco-responsible glitter makeup, ecological prevention stands, and participatory activities that make each edition more than just a musical event: a true community and engaged experience.