Easton's Bible Dictionary (1897)
A place near Succoth, in the plain of the Jordan, “in the clay ground,” near which Hiram cast the brazen utensils for the temple (1 Kings 7:46); probably the same as Zartan. It is also called Zeredathah (2 Chr. 4:17). (See ZEREDA.)
Hastings' Dictionary of the Bible (1898) & Schaff's Bible Dictionary
ZAR'THAN (cooling), a town in the Jordan valley. 1 Kgs 7:46. Between it and Succoth were the clay-grounds in which Solomon cast the brass utensils for the temple-services. Drake mentions a very conspicuous mound, 3 miles south of Bethshean, called Tell Sarem - a name identical with ?'lapa't?, which the Alexandrine Codex has for Zarthan. This may be the same as Zereda, which see.