The system aims to cut wait times.
"There were definitely a few boys who were shaken up."
Council hydrology officers discovered a fire had been lit under one monitoring station.
"He was looking forward to introducing his baby daughter to the mountains."
Richard Phillips and Peter Kirkwood, engineering geologists from Christchurch-based firm Tonkin + Taylor, were the pair found on the mountain just before 10pm on Tuesday.
"It's an absolute tragedy to think that someone's out doing the things they enjoy doing in life and they've had their life taken."
It's understood the two men died near Syme Hut, which is at an elevation of 1940m.
The game bird hunting season is set to kick off on May 1.