It is a 50-mile trek with an 8,261-foot elevation gain to get to Everest Base Camp. 60 Minutes’ Cecilia Vega spent months training for this uphill grind. She studied the route and yet, she says, nothing prepared her for the suspension bridges, including one that dangles 45 stories above a roaring river in a gorge. #mounteverest #everest #trekking #mteverest #hiking