Wild Tupižnica Mountain, also known as Lasovačka planina Mountain is situated in East Serbia, about 20 km north of Knjaževac, between ranges of the impressive Rtanj and Stara Planina Mountains. Tupižnica Mountain lies northwest of Knjaževac Valley and southwest of Zaječar Valley, on the left side of Beli Timok River. Tupižnica Mountain belongs to the east zone of the limestone mountains and stretches in the meridian course. Tupižnica Mountain ends in the west with the high rocky reef of Bučanski kamen peak, 1162 meters high, from where outstanding panorama spreads over the significantly lower surroundings, while in the east it has shape of mildly slope plateau. Tupižnica Mountain belongs to the best areas of major wind power potential in Serbia. Thanks to its vertical reef, and major winds courses and preserved natural environment, Tupižnica Mountain makes ideal destination for para-gliders, mountain bikers, trekkers, extreme sports lovers and hunters. Total length of well-marked trekking pathway is about 11 km, which ranks among light or middle light pathway. Climbing Tupižnica Mountain lasts about 3,5 hours while descend lasts up to 2,5 hours. Within the Tupižnica hunting reserve there is a deer reserve, pheasant farm with approximately 1 500 pheasant chicks, a part of hunting for wild boars, and fenced grounds for training dogs to hunt wild boar.
Most of Tupižnica Mountain is composed of limestone which provide numerous superficial and underground karst shapes of relief. Forests of Tupižnica Mountain is gorgeous in spite of intense cattle breeding on mountainous pastures. There is the TV relay on the highest part of Tupižnica Mountain, approachable by paved road. Tupižnica Mountain is remote and uninhabited, especially its vast forested northern parts, towards villages of Gornja Bela Reka and Lenovac in Zaječar municipality. Tupiznica Mountain possesses superficial karst shapes, formed as masked depressions and hollows, while the underground shapes are present as the pits and caves. They appear on Tupiznica and in the area of the Vratarnica pit. The fundamental of the mountain is composed out of the slates and magma rocks, and the very reef is out of limestone. The karst shapes mildly appear as hollows. Tupižnica Mountain is noted for its numerous Lilac trees and various benefiting medicinal herbs. One of the best and the most authentic rural tourist households from the respectable PANACOMP net of hospitality is situated nearby.