Why did the cattle business become a big business in the late 1800's?

The cattle business became a significant industry in the late 1800s due to the booming demand for beef in growing urban centers and the expansion of railroads, which facilitated the transportation of cattle to markets. The availability of vast open lands in the American West allowed for large-scale ranching and cattle drives. Additionally, the end of the Civil War created favorable economic conditions and a growing population that increased the demand for meat. These factors combined to transform cattle ranching into a major business in the United States.