A third source, neither the ministry census nor OpenStreetMap: what the town itself publishes. It is the only one that says where a facility came from, who built it and what it cost.
On 13 July 2021 the town of Sallanches notified its contract 2021/04, 'pumptrack and flow park design': a works contract under an adapted procedure, at a firm price of €370,000 excl. tax for both facilities. It went to a consortium led by Vulcano Skateparks, with BikeSolutions, the practice Fest Architecture and Inout Concept.1
The Pays du Mont-Blanc tourist office describes the track: four graded lines, each colour-coded — green over 107 metres, blue over 155, red over 105, black over 60 — with a 'free line' on the blue-and-red route. The black line carries a 'shark fin' jump, and an earth bump line rounds out the layout. A 'tic-tac' module links to the neighbouring flow park. Access is free year-round; the track adjoins the skatepark on rue de l'Hôpital.2