Of late I have been watching videos and reading Blogs or Articles on Mountain Trips on some stretches of Himachal Pradesh.
As for the videos, I might come out with a blog later.
In the meanwhile, I read this one today:
http://www.theuntourists.com/sangla-to-nako-to-kaza-the-roadtrip-continues/
It is by a person who traveled from Mumbai all the way to Spiti valley and the best part is the Pictures along with a matching description that is shown.
A must read.