Prairie Meadows is a Racino located in Altoona, Iowa, United States, it runs both Thoroughbreds and Quarter Horses at its meet from May to September. In 1984, Prairie Meadows received a license from the Iowa Racing and Gaming commission to operate a horse racing facility after parimutuel betting was legalized by the state the previous year. In 19…Prairie Meadows is a Racino located in Altoona, Iowa, United States, it runs both Thoroughbreds and Quarter Horses at its meet from May to September. In 1984, Prairie Meadows received a license from the Iowa Racing and Gaming commission to operate a horse racing facility after parimutuel betting was legalized by the state the previous year. In 1987, groundbreaking ceremonies were held for Prairie Meadows.