Hypogeum setup for La Tana delle Marmotte – Skyway Mont Blanc, Pavillon
At an altitude of 2173 meters, in the middle station of the Pavillon – Skyway Mont Blanc – takes shape The Groundhogs’ Den: a hypogean play and educational project designed to educate and engage children and families within animmersive sensory experience.
Saglietti Group oversaw the technical implementation of the structure, working under extreme environmental conditions, with dedicated logistics and timelines constrained by the arrival of snow.
An underground setting between narrative, technique and altitude
Building underground, at 2173 meters
The project stems from a call for proposals promoted by Funivie Monte Bianco S.p.A., with the design signed by Officina82. The objective:
Create an educational and sensory space capable of telling the story of the life of the alpine marmot, through sounds, educational panels,
child-friendly paths and ascenic exit via a transparent dome emerging from the ground.
Implementation required non-standard operational management:
- Materials and people transported to altitude by helicopter and cable car
- On-site assembly by Saglietti Group technical team at a permanent construction site for one month, between October and November 2024
- Daily management of adverse weather conditions: fog, wind, rain, mud, and cold temperatures
Each activity was planned according to the cable car schedule and the imminent arrival of snow.
The construction site was completed on schedule, allowing the project to open before the seasonal closure.
Technology, wood and steel for an immersive experience
Parametric design and playful certification
The heart of the project is an 8-meter-long corten steel underground pipe, cut into sections and assembled directly at height.
The self-healing outer structure, perfectly integrated into the alpine landscape, was welded in situ by Nuova Sicmi Srl,
then buried by taking advantage of the natural slope of the land (about 27°).
A second glulam structure, designed in 3D to reduce time and margin of error, was inserted inside. Its features:
- 14 modular layers for more than 300 machined parts
- Three-ply (4 cm) spruce cladding, treated with fire retardant paint
- Two entrances: one for adults (ø 2.20 m), one for children (ø 1.30 m)
- Transparent plexiglass dome (2 x 1.10 m)
- Forced ventilation, flexible LED lighting, audio speakers, educational panels
- Contoured interior steps to accompany the pathway
Particular attention was paid to safety and play regulations:
- Risk assessment
- Foam and faux leather covers for impact surfaces
- Certified materials
- Spaces that conform to inclusive play
A technical project with an educational soul
Inside the Burrow, visitors are accompanied by the narrative voice of Otta, a marmot guide who narrates habits, habitat, hibernation and feeding.
Curved transparent vitrines accommodate life-size reproductions of the animal, integrating into the hypogeal setting.
The project targets a cross-sectional audience, keeping thechild’s experience at the center but with a narrative and constructive framework that can be read by adults as well.
The intervention was possible thanks to the synergy between several parties:
- Officina82 – Lara Sappa and Fabio Revetria – for design and art direction
- Funivie Monte Bianco Spa, promoter and developer of the work
- The Saglietti Group operations team, present at high altitude for the duration of the site: Alessio Giacone, Daria Bergese, Ciko, Sofian and Daniele
Do you have an elevation or depth project? Let’s talk about it.
Whether it is a hypogeal educational space or an immersive exhibit in extreme conditions,
Saglietti Group is the ideal technical partner to create tailor-made, sustainable and functional installations that respect both the context and the visitor experience.
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