In Bulgaria, the peak is called Midzhur. Since the early 1990s, it has been accessible to tourists from both sides; previously, access was forbidden due to the peak being in the border area. Due to those restrictions, the nature around the peak has been preserved untouched. On the Bulgarian side, the peak is reachable from the villages of Chuprene and Gorni Lom in Vidin Province.
Chuprene
From Chuprene there are two possibilities for climbing. There is a 17 kmdirt road following the river Chprenska to the Gorski Ray refuge or a 9 km foot track following the river Manastirska. From the refuge there is a marked track which passes through the Chuprene biosphere reserve and leads to the main summit on a saddle between the peaks Replyanska Tsarkva and Ostra Chuka. To the south east through the peaks Ostra Chuka and Oba the track reaches a saddle from where the Lom River and the Timok flow out at border stone 336. From there the peak can be climbed from the north-western slope.
Gorni Lom
At 7 km from the village of Gorni Lom is located the Gorni Lom refuge. There is also another refuge upstream called Mudzhur. There are steep tracks from there leading to the saddle between Oba and the peak at border stone 336 from where the both tracks from the two villages merge.
Economy
The source of the Lom River is at the foot of the peak. A cascade of small hydroelectric power plants is in operation on the river near the peak and four more are under construction. Chuprene biosphere reserve which is under the protection of UNESCO is situated to the west of the peak. It is one of the last sanctuaries in Bulgaria where the Capercaillie nests. A special permission from a border police office is required in order to ascend to the peak.
Serbia
In Serbia the peak is known as Midžor. The extreme peak of the western mountain is north of the village of Topli Dol, located in the centre of Serbian Stara Planina, between Tri Čuke on the SE side and Babin Zub on the SW side. The massif of the Midžor peak is substantial. Its western, eastern, and southern slopes are grassy and not so steep, while its northern side is rocky and very steep. This side is also the most attractive and very popular among rock climbers. It is the highest peak in Serbia outside of Kosovo, and the 24th highest in the whole of Serbia if Kosovo is included. There is a hotel called "Babin Zub" on the slopes. There are no fees or permits needed to enter the Serbian Stara Planina.
