Grmeč is a mountain of Dinaric Alps in north-western Bosnia and Herzegovina. It is more than 60 kilometres long, stretching between the city of Bihać and the town of Ključ. The highest peak of Grmeč is Crni vrh at 1,605 metres (5,266 ft) above sea level. Grmeč is surrounded by the city of Bihać and the towns of Bosanski Petrovac, Ključ, Sanski Most, and Bosanska Krupa.