1955 ... rushing for Uranium!

... as the USA feverishly worked to build huge stockpiles of atomic weapons the need to find and mine Uranium ore skyrocketed. Modern day prospectors set out for 'them thar hills!' in a 'uranium rush'. Deposits of the mildly radioactive ore ( it had to be refined many times for bomb production) were plentiful in North America. Less so in the Soviet Union.

all images- Right click- open in New Window= super colossal size!