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  As an instructor at the Royal Military Academy Sandhurst David N Hall spent two Christmas leaves carrying out a survey by camel of the northern escarpment of the Hamada el Homra. 

He had suspected it to be wrongly placed on the map when he was on military training in Libya for six weeks from the regiment in Cyprus.


For a full account - an extract from Hall's memoir

Soon after returning from the Sandhurst Archenu Expedition I set about preparing my next desert project for the Christmas break in three months time, but this was to be a camel survey of the northern edge of the Hamada el Homra, about 130 miles south of Tripoli. I had failed to find the escarpment when on a training exercise four or five years earlier because it was wrong on the old Italian maps. Perhaps I am doing the Italian surveyors an injustice, but I suspect they flew over the area sketching busily, doing the best they could. I suspect there were no closing of traverses or star fixes.
A sketch of the area in Tripolitania covered by Hall's two camel journeys showing the line of the escarpment on to earlier maps.


Friends of Ahamed bin Dau come to
 see us off from the oasis of Mizda.

After the dust storm - clear air.

Shadows lengthen and we look for pasture for the night.

The remnants of the fire.

Every evening macaroni with onions

In the foothills of Hamada el Homra.


Up and up but protests from the camels

A view from my camel.

The chaos of the escarpment.


At the top whole sections were being eroded away, as though on the move.

View from the top looking north east.

More chaos means unhappy camels!


The weather was changeable, and Ahamed had a bad cough.

Hall looking pensive, perhaps on the day we lost our camels.

The outcome of this and a second Christmas journey was a map of the escarpment.