Mandisa Alexander, who was hiking with a friend in Arizona’s Tonto National Park when a flash flood hit, says she felt powerless to help fellow walkers who had become stranded.
Get the latest headlines: http://www.telegraph.co.uk/
Like us on Facebook: http://www.facebook.com/telegraph.co.uk
Follow us on Twitter: https://twitter.com/telegraph
Follow us on Google+ https://plus.google.com/102891355072777008500/
Telegraph.co.uk and YouTube.com/TelegraphTV are websites of The Daily Telegraph, the UK’s best-selling quality daily newspaper providing news and analysis on UK and world events, business, sport, lifestyle and culture.