Observations

While in the area we made a number of height measurements by altimeter. In doing this it seemed to us that some of the existing heights attributed to the peaks might be inaccurate. Our barometer measurements showing some heights about 250m lower than given on the USA maps. Our last peak which should have been around 5800m was measured at 5550. Looking across from our last bivi (4800m) we did seem to be as high as the top of Pyramid Peak, shown as 5500m, with Madhil Sar not looking that much higher.
(NB. While Les and I rested at ABC on the 18th August we noticed that without moving one foot we travelled up 100m then down again as the barometric pressure changed.)

The maps show Pyramid Peak as being at the end of a continuous ridge running down from Distaghil Sar however from our observations and photographs it is obvious that it is separate having a distinct drop at its southern end as well, although this drop is much smaller than the northern face and associated ridges.
When we were looking across to the valley between Pyramid and Adver Sar we saw a rather attractive peak forming a horseshoe on the horizon.

Also from our high bivi we also notice that the Madhil Sar, Little Bump, Un-named 6000m Peak ridge leading up to Adver Sar had quite a complex structure shown in outline below.

As well as the ridge that joins the three peaks on the east (as seen from below Adver Sar ) there also seemed to be a ridge between Little Bump and unclimbed 6000m Peak on its west, with a drop between the ridge and the peak

Having now visited this area once, its potential for further exploration and climbing are quite compelling. If as we suspect the heights of some of the higher peaks are over assessed that would mean that more would be sub-6000m, and suitable for Pakistan’s trekking regulations. The twin peak that we saw from the col below our last peak would be an interesting proposition from its own valley, as would the peak on ‘our’ ridge, leading up towards Malangutti Sar. The problem there however would be the distance from the Shimshal Valley. Perhaps an approach made from the valley west of the Malangutti would provide suitable access to both. Also Pyramid Peak remains un-reached and though we did not manage to negotiate its icefall, it may be possible with more time expended on it or in a different year the confusion may be less. The area we were able to look through to, past Pyramid Peak and Adver Sar, also looked worth reaching.