[1] The river takes its source under the name Zlatoselska reka at an altitude of 696 m at 1.7 km southwest of the village of Svezhen in the mountain range of Sredna Gora.

There are also shrubs of Jerusalem thorn (Paliurus spina-christi), common lilac (Syringa vulgaris), dwarf everlast (Helichrysum arenarium) and blackberries (Rubus fruticosus).

The Srebra then flows into the Dondukovo Reservoir and enters the Upper Thracian Plain at the village of Zlatosel.

It flows southwards from its source to the town of Rakovski and then turns in southeastern direction, passing though the village of Belozem.

Almost all of the river's waters are utilised for irrigation for the intensive agriculture in the Upper Thracian Plain.