Costa Rican Coffee Ox Cart Driver. Sarchi, in Costa Rica’s Central Valley region, has a long history of oxcart production. The farms surrounding Sarchi have grown coffee for over 100 years, and farmers originally transported their harvest with these types of carts. Soon, however, having an oxcart was a sort of status symbol that showcased a farmer’s success. And as is true with many status symbols, there is always some healthy competition. Farmers and oxcart makers started to improve the appearance of their carts.