İyidere (river)

İyidere İyi Dere
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Data
location	Rize , Trabzon ( Turkey )
River system	İyidere
source	Eastern Pontic Mountains 40 ° 35 ′ 44 ″  N , 40 ° 46 ′ 20 ″  E
Source height	approx.  3000  m
muzzle	Black Sea Coordinates: 40 ° 59 ′ 18 ″  N , 40 ° 19 ′ 46 ″  E 40 ° 59 ′ 18 ″  N , 40 ° 19 ′ 46 ″  E
Mouth height	0  m
Height difference	approx. 3000 m
Bottom slope	approx. 38 ‰
length	78.4 km
Catchment area	1,047.4 km²
Right tributaries	Kalkandere
Communities	İkizdere

The İyidere (also İyi Dere ; Turkish for "good brook") is a river in northeast Turkey . It rises in the Eastern Pontic Mountains and flows into the Black Sea .

The river flows in a predominantly north-northwest direction through the mountains of the İkizdere district of the Rize province . The D925 trunk road from İspir to the Black Sea follows the course of the river to the mouth. The İyidere passes the İkizdere District Administrative Center and reaches the Trabzon provincial border . In the lower reaches the provincial border between Trabzon in the west and Rize in the east runs along the river. The İyidere finally flows 4 km west of the coastal town of İyidere into the Black Sea. The İyidere has a length of 78.4 km. Its catchment area covers 1047.4 km².

Individual evidence

1. ↑ ^{a b} T.C. KALKINMA BAKANLIĞI DOĞU KARADENİZ PROJESİ BÖLGE KALKINMA İDARESİ BAŞKANLIĞI (PDF) ( Memento of the original from January 4, 2015 in the Internet Archive ) Info: The archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice.