The river is approximately 2,781 kilometers (1,730 miles) long. It is formed by the union of two branches, the Kara (the western Euphrates), which rises in the Armenian highlands of today’s eastern Turkey north of Erzurum and the Murat (the eastern Euphrates), which issues from an area southwest of Mount Ararat, north of Lake Van. The upper reaches of the Euphrates flow through steep canyons and gorges, southeast across Syria, and through Iraq. The Khabur and the Balikh River join the Euphrates in eastern Syria.
Length 2,800 km
Source elevation 4,500 m
Avg. discharge 818 m³/s
Basin area 765,831 km²
These pictures are at 40km after river enters Syria, at Najem castle.
And these pics at another point in a dusty winds day.