Jan 28, 2016 · The vital stats. The overall distance of the Quarry Trail is about 26km (the Inca Trail is 43km) and the maximum altitude is 4,450m above sea level (the Inca Trail's highest point is Dead Woman's Pass at 4,215m). We'll give you time in Cusco to acclimatize before the trek, but altitude sickness can be a problem for some.