The Shigar River is a tributary to the Indus River, joining at the town of Skardu. The Basha and Braldu rivers are northern tributaries of the Shigar. Numerous complex granitic pegmatites and a few alpine-cleft metamorphic deposits are found in the Shigar Valley and its tributaries.
Ref.:
Blauwet, D., Smith, B., and Smith, C. (1997): A Guide to the Mineral Localities of the Northern Areas, Pakistan. Mineralogical Record 28(3), 183-200.