Nostromo is set in the South American country of Costaguana (a fictional nation, though its geography as described in the book closely matches real-life Colombia). Costaguana has a long history of tyranny, revolution and warfare, but has recently experienced a period of stability under the dictator Ribiera.
Charles Gould is a native Costaguanero of English descent who owns an important silver-mining concession near the key port of Sulaco. He is tired of the political instability in Costaguana and its concomitant corruption, and uses his wealth to support Ribiera's government, which he believes will finally bring stability to the country after years of misrule and tyranny by self-serving dictators. Instead, Gould's refurbished silver mine and the wealth it has generated inspires a new round of revolutions and self-proclaimed warlords, plunging Costaguana into chaos. Among others, the revolutionary Montero invades Sulaco; Gould, adamant that his silver should not become spoil for his enemies, orders Nostromo, the trusted "capataz de los cargadores" (head longshoreman) of Sulaco, to take it offshore so it can be sold into international markets.
