The passage should run “rose up, an heap far away, by Adam, the city which is beside Zarthan.”
The city of Adam is not named elsewhere, and Zarthan (mentioned here and in marginal references.) has also disappeared. It is, however, probably connected with the modern Kurn Sartabeh (Horn of Sartabeh), the name given to a lofty and isolated hill some 17 miles on the river above Jericho.