Most visitors of Machu Picchu readily skip Machu Picchu Mountain and lined up for the ticket to Huayna Picchu instread. while Machu Picchu Mountain offers spectacular views of the citadel, it is also much higher and therefore less traveled.
Officially, as posted on the visitor sign, the stairway climb to the top of Machu Picchu Mountain is a 3 hour affair. To those who are physically fit, it could be a under 90 minute climb. It is definitely not a climb for everyone, the stairs are steep and narrow with minimum of break in between sections. Some people may not be able to finish.
For all the hard work, the award is an almost aerial view of the citadel.