Answer:
The Treaty of Guadalupe Hidalgo and the Pacific Railway Act reflect expansion patterns that would lead to the industrialization of the American West. The Treaty of Guadalupe Hidalgo, which ended the Mexican-American War, gave the United States control of a vast new territory, including much of the present-day Southwest. This territory was rich in natural resources, including gold, silver, and timber. The Pacific Railway Act, which subsidized the construction of a transcontinental railroad, made it possible to transport these resources to the East Coast.
The industrialization of the American West had a profound impact on the region. It led to the growth of cities, the development of new industries, and the influx of new people. It also had a significant impact on the environment. The construction of railroads, mines, and factories led to deforestation, pollution, and the displacement of Native Americans.
The industrialization of the American West was a complex and controversial process. It had both positive and negative impacts on the region. However, there is no doubt that it was a major turning point in the history of the United States.