Cordero de Navarra is a pure-bred Navarra and Lacha breed lamb born and raised in the province of Navarre. There are two different categories of these lambs; Cordero Lechal, baby lambs whose carcasses do not weigh more than eight kilograms at the time of slaughter, and Cordero Ternasco, which usually weigh between 9 and 12 kilograms at the time of slaughter.