I assume you mean "fullbloods." Of the several strains of Simmental that were introduced into the US in the late 60's and early 70's, including Montbeliarde, Pie Rouge, etc., the only one that I know is still being produced as fullbloods in North America is the Fleckvieh. There is a group of Fleckvieh breeders that have formed an organization and have a website: www.fleckvieh.com.
