Thought this might be interesting.

A photo from the 1860s-1870 of the Junction of the Peen and Spiti rivers clicked from Dummkar 1860-70s; Photo by Samuel Bourne, print obtained from Bindra Studios, Shimla; image published here is of original print from Sanjay Mukherjee Old Himachal photos collection

View of the Confluence of Pin and Spiti rivers, clicked in July 2016 from the ridge behind the Dhankhar Monastery on the road to Lalung; Photo: Sanjay Mukherjee