[2] The Powfoot Nitro-cellulose factory was established by the War Office in 1940 and was supplied with materials by train from Bishopton.

The site was run by Nobel's Explosives on behalf of the Ministry of Defence and Royal Ordnance.

[3][2] The halt was not open to the general public and only served workers at the munitions factory.

[4] Newbie Junction Halt railway station was another workers only halt that existed between 1898 and 1904 close to Annan where it served the factory workers of Cochran's & Co. boilers and the Newbie Brick and Tile works.

The relatively short platforms were built on the double track line from wood and were reached by a set of wooden steps leading up from the Longfords to Broom lane.