Recent work in the department of Eure has uncovered two different sites providing a total of three separate bloomery furnaces each retaining slag from the last smelting and including additional evidence of at least two previous firings to reduce ores. These structures have been radiocarbon-dated to between the first Iron Age (Hallstatt) and the middle of the second Iron Age (La Tène B). This dating matches that for pottery from adjacent settlement structures. The arrangements within these habitation sites differs considerably in particular with regard to the positioning of the iron-working evidence within them.