A student of William Foxwell Albright, American archaeologist Nelson Glueck conducted extensive surveys and technical studies of Ammon, Moab and Edom in the 1930s and 1940s, which are still required reading for anyone wishing to do archaeological work in Jordan. Glueck correctly identified Khirbat en-Nahas as the central Iron Age mining and smelting site in the region, and, based on pottery sherds collected from the surface, he dated the major period of activity to the tenth century B.C.E.—a date finding new support from the recent excavations and carbon dating at the site.