PLEASE PLEASE PLEASE HELP MEeE What were the primary industries that dominated the western part of the United States before mass industrialization of the region?

https://www.britannica.com/place/United-States/Industrialization-of-the-U-S-economy

Explanation:

the monroe doctrine is the best known u.s. policy toward the western hemisphere. buried in a routine annual message delivered to congress by president james monroe in december 1823, the doctrine warns european nations that the united states would not tolerate further colonization or puppet monarchs.

depending on what kind of map for example a pltical maps works in many ways this iss how it works it shows the areas and places the democratics and the repbulcicans reside for example if   texas chooses trump for president there a republican state and if   califronia chooses hillary there a democratic state.