In may 2005 I went on a trek in the Indian Himalaya organised by HT Wandelreizen. The trip was experimental, in the sense that HT hadn't explored this route previously, and it was likely that we would have to improvise if the planned routes were tougher than expected. This certainly turned out to be the case as the winter snows had been particularly heavy and the weather was still very unpredictable. This meant that the snow line was between 3500 and 4000 meters, and many of the high passes that we originally planned to attempt turned out to be impassable. In the end we made three separate treks, starting in Uttarkashi and ending near Rampur. I tracked our progress on my GPS and have plotted the routes on satellite image maps.
The picture shows Jan walking along the ridge just north of Narang peak.