The Abraham River (Arabic: نهر ابراهيم, Nahr Ibrahim) also known as Adonis River (Arabic: نهر ادونيس), is a small river in the Mount Lebanon Governorate in Lebanon, with a length of about 14 mi (23 km). The river emerges from a huge cavern, the Afqa Grotto, nearly 5,000 ft (1,500 m) above sea level before it drops steeply through a series of falls and passes through a sheer gorge through the mountains. It passes through the town of Nahr Ibrahim before emptying into the Mediterranean Sea. The city takes its name from the river (nahr means river in Arabic).
The ancient city of Byblos stood near its outlet and was a site for the veneration of Adonis, the god of love, rebirth and beauty in Phoenician Mythology. He was said to have been killed near the river by a boar sent by Ares, the god of war (or by Ares himself disguised as a boar, depending on the version). According to the myth, Adonis's blood flowed in the river, making the water reddish for centuries and spawning a carpet of scarlet buttercups along the river's banks. Soil washed off the mountains by heavy winter rains causes the water to take on its red color in February.
Due to the river's mythological connections, it was revered in ancient times and its valley contains the remains of numerous temples and shrines. Even today, local people hang out clothes of sick people at a ruined temple near the river's source in the hopes of effecting cures.
- Gresswell, R. Kay (1965). Standard encyclopedia of the world's rivers and lakes. Putnam. p. 19.