i dontknowif u can get gps coo rdinates or anything like that. its all pretty straight forward.the whole place is under army control.
u just cant go wherever you like its restricted area.dont think from memory u can go past pangongso.my friends and i tried to get to 'marsimik la'-apparently higher than khardungla in 2003 and even thouugh we had very high military connections and were guests of the border roads org it was not not possible.otherwise most of the other roads are pretty simple.
ordinance maps from the army are the best for the area.
nubra valley is pretty simple too. most are army roads made to get supplies to outposts in the summer months .