Mazova horka (569 m) is the highest peak of the Kotelská vrchovina hills in southern Podještědí, a striking cone-shaped summit that catches the eye from far away. This is a place where geology meets history - remnants of three circular ramparts from a prehistoric settlement still crown the top.

The peak forms a distinctive volcanic cone, capped by an exposed vein of olivine nephelinite and melilite, with Turonian sandstone forming the lower slopes. Steep slopes of 20-35 degrees hide patches of volcanic scree fields. Mixed forest of birch, pine, spruce and rowan covers the hill, giving it a different character in every season - fresh green in spring, fiery colours in autumn. The eastern foot of the hill is built up, while the rest is mostly farmland.

Slightly lower, on the northeastern foot of the hill, lies a real curiosity - Skalákovna (486 m), an artificial cave carved out of an abandoned sandstone quarry in the early 19th century. Two rock chambers with three rectangular windows once served as temporary and even permanent housing. It became famous thanks to the short story Skalák by Czech writer Karolína Světlá, who often stayed and worked here.

• Jiříčkov - red-marked trail with the Ještědské vápence nature trail signs, moderate difficulty
• The route continues west to Rozstání
• By car, the closest access is via the Jiříčkov - Javorník road

• The route includes the Ještědské vápence educational nature trail with information panels
• Worth combining with a visit to nearby Skalákovna, an artificial cave linked to writer Karolína Světlá

The hill is part of the Ještěd Nature Park, and its volcanic origins combined with prehistoric settlement traces make it equally fascinating for geology enthusiasts and history lovers.