Why did cattle drivers lead cattle from north Texas to Nebraska and Kansas between 1867 and 1871?

Cattle drivers led cattle from north Texas to Nebraska and Kansas between 1867 and 1871 primarily due to the demand for beef in the growing markets of the East. The expansion of railroads into these states facilitated the transportation of cattle to meatpacking centers, allowing ranchers to capitalize on higher prices. Additionally, the end of the Civil War and the opening of new grazing lands in the West created opportunities for cattle drives, making it a profitable venture for cattlemen during this period.