Karvav Kamak (Bulgarian: Кървав камък), meaning Bloody Stone, is a small mountain range in Kraishte region on the border of western Bulgaria and southeastern Serbia.

Its highest summit is Bilo, rising 1,737 meters above sea level.

The ridge of the mountain runs from north to south and is highly undulating with an average altitude of 1,500–1,700 m, with a sharp decline in the southeast.

[1] Karvav Kamak is formed of Paleozoic metamorphic rocks — amphibolite, schists, phyllite.

For the most part, the mountain is covered with deciduous forests of beech, oak, hornbeam and maple.