Byk, mountain and nature monument in Predgorny District, Stavropol Krai, Russia

Byk is a mountain and natural monument located in Predgorny District, rising to about 817 meters elevation. Rocky outcrops mark its slopes, which display varied vegetation adapted to different elevations.

Byk is a relict magmatic palaeovolcano in the Pyatigorye area of the Caucasus Mineral Waters, 0.5 km east of the Bykogorka farmstead. Uranium ore was mined here at Mine No. 2 from the mid-20th century until 1990. On 15 September 1961 it was designated a regional landscape natural monument by decision No. 676 of the Stavropol Krai authorities.

The name Byk (Russian for "bull") is explained in two ways: it may be a corruption of the Abaza word "Bykho", meaning "mountain", or it recalls a caravan bull that strayed and was found grazing on the slope. The mountain has no visual resemblance to the animal.

Hiking trails connect various starting points within Predgorny District to the mountain, with spring and autumn offering the most comfortable climbing conditions. Visitors should bring weather-appropriate gear since conditions can change rapidly at elevation.

The name has no visual link to a bull: one version derives it from the Abaza word "Bykho", meaning mountain; another tells of a caravan bull found grazing on the slope. Archaeologist V. P. Lyubin found Acheulean tools of hornfels on the slope.