In W Arkadia, flowing through Stratos. There was another river of this name which emptied into the Black Sea (southern shore). Note, however, that in both instances the authentic version of the name seems to have been Ladon (so e.g. Strabo 8.8.4); so the headword here is evidently in the genitive case (as many names and toponyms in the Suda are, wittingly or otherwise).