To our right and high up in the Pamir mountains lies the 500m deep Lake Sarez, described as an accident waiting to happen.
Created after an earthquake in 1911 which dislodged an entire mountainside into the path of the Murghab river obliterating the villages of Usoi and Sarez it's held up by a natural dam of mud and rocks.
Another regional earthquake could breach this dam and a wall of water would sweep down the valleys, wiping away roads and villages deep into Uzbekistan, Turkmenistan and Afganistan with the flood waters reaching as far as the Aral Sea.
It would be the greatest flood ever witnessed.
But the ground feels solid and we push on up to Kalaikhum.
Here, we had intended to take the main route to Dushanbe but there been some shootings and the road was closed.
We'd have to stay with the Panj river now turning south west.
Having heard recents stories from travellers we'd met en route we became wary of the small groups of young Tajik soldiers who guard this region against drug smuggling where Afganistan is still a stones throw away.
We met a young Swiss woman who they'd tried to rape, other couples who were forced to hand over money at gun point.
There are plenty of official checkpoints which we recognise so decided the best policy was not to stop for these small groups of soldiers who were acting in a very ....unoffical manner.
We were stuck for somewhere to stay and offered some beds in the town bank for which they wanted a small fortune and we could wash in the ditch.
They were taking the piss and I told them so, they dropped the price but I wasn't happy so we rode around the corner and found a small homestay run by a local mountaineer, it was perfect.
I just love it when that happens.
In the morning we found the main petrol station.