D.850 is a north to south kingdom street in Turkey. It starts offevolved at Ünye at Black beach and ends at Öncüpınar, the Syrian border take a look at factor. since it runs all of the way from north to south it crosses the three fundamental west to east highways namely D-one hundred , D-300 and D-400 .
|Length:||851 km (528 mi)|
|North end:||Ünye (Black Sea coast)|
|South end:||Öncüpınar (Syrian border)|
|Highway system||Turkish State Highway System (Devlet Yolu)