We really haven’t found any decent maps for the region. The altitude of mountains varies by 500 meters depending on which map you look at. Word is that there are some decent Russian topographical maps out there but we have yet to see them. If only the Federal Office of Topography swisstopo would donate their time. They could even use the same grid as the countries are roughly the same size and the terrain has the same complexity.
Djule La ~ 4500 m