Evidence (Pleiades, CC BY 3.0)
exact location · approximate
Historical water — certainty tiers
reconstructed — inferred from the alignment of attested cities
schematic — presence claimed, course not
No surveyed course is drawn yet: the solid tier is reserved for survey / remote-sensing traces. Published reconstructions disagree by tens of kilometres — the dashes are the honesty.
Trade routes — attestation
textual — written record names the trade
archaeological — the objects attest it
inferred — plausible, marked as a guess
Modern reference
today's rivers & coast, for orientation only