"Early and mid-1800s Ranching ceased to be a strictly Hispanic profession as more Americans poured into once Mexican-held lands (especially after the Mexican/American War, 1846–48). The Anglo newcomers adapted to the vaquero style, and many settlers intermarried with the old Spanish ranching families. The 1849 gold rush brought even more people to California, which increased the demand for beef. Californios rode ponies that had been trained in a hackamore, swung a big loop with their hand-braided rawhide reatas, and took a wrap called a dally (from the Spanish dar la vuelta, to take a turn) around high saddle horns for leverage when roping cattle."
There are a few terms to research. Just FYI there are still many artisans who do the braided leather work. The braided rawhide reatas are beautiful if you've never seen one.
"Until one has loved an animal, part of one's soul remains unawakened..."
- Anatole France