Sia La is a mountain pass situated on Saltoro Ridge, in Gilgit Baltistan, Pakistan some 60 km (37 mi) north-northwest of map point NJ9842 which defined the end of the 1972 Line of Control between India and Pakistan as part of the Simla Agreement.
The Saltoro Mountains Range, of which western slopes are held by Pakistan and separated by the Actual Ground Position Line (AGPL) the higher peaks and passes are held by India all of which remain snowbound throughout the year, provides access to Siachen Glacier to it's east through 5 passes, i.e., listed from south to north are Chulung La (5,800m), Yarma La (6,100m), Gyong La (5,640m), Bilafond La (6,160m) - also called Saltoro La, and Sia La (7,300m).
Sia La, as well as nearby passes Bilafond La and Gyong La, saw military action starting in 1984 during Operation Meghdoot, the first military action of the Siachen conflict, itself being part of larger conflict, the Kashmir conflict.
[3] Pakistan controls a pass just to the west that overlooks Sia La, named Conway Saddle which has Pakistan Army's Leghari Observation Post (Leghari OP) on the Actual Ground Position Line (AGPL).
This Ladakh, India location article is a stub.