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Three sites, hundreds of tons of dangerous rock, fifteen days. The crew reports to Niagara Falls State Park and is given a mammoth task: make the park safe for the public. They must address several areas in which dangerously loose rock threatens to topple down the slope and injure and destroy anyone or anything in its way.
Première date de diffusion : Nov 22, 2011
Dernière date d'air : Jan 24, 2012
Épisode : 10 Épisode
Saison : 1 Saison
Durée: 48 minutes
Studio: National Geographic
Pays:
Équipage:
