A French study on the especially risky Goûter couloir, on the normal route on Mont Blanc and necessary rescue operations found that between 1990 and 2011, there were 74 deaths between the Tête Rousse refuge (3,187 m) and the Goûter refuge (3,830 m). There were 17 more in 2012-15, none in 2016 and 11 in 2017.