aiguille du midi, alpinism, alpinist exit, backed up, busy, chamonix, chamonix-mont-blanc, climbers, climbing, congested, congestion, crowd, crowded, crowds, danger, dark side, france, freezing, french alps, geological phenomenon, hill station, knifeedge, line, mont blanc, mountaineering, recreation, ridge, risk, shadow, sky, slope, snow, steep, struggle, too much, traffic jam, vallee blanche, white, winter