Jelínkův most, Natural arch in Tmaň, Czech Republic

Jelínkův most is a narrow, deep gorge in the Český kras protected landscape area, about 1 km west of the Koněpruské caves in the Tmaň cadastral area. Its edges, roughly 1 m apart, touch at two points, creating a karst formation resembling a tall Gothic pointed arch. The crevice is about 9 m high and at most 1 m wide, and it lies within the Kotýz National Nature Monument.

The arch lies within the Kotýz National Nature Reserve, above the Čertovy schody quarry near Koněpruské caves. The surrounding karst plateau, including the Kotýz hillfort, has yielded evidence of prehistoric activity, but the arch itself is a natural feature formed by water dissolving the limestone.

The name Jelínkův most (Jelínek's Bridge) and the alternative Jelínkova brána (Jelínek's Gate) refer to the arch formed where the two walls of a narrow gorge meet. The formation lies in the Kotýz National Nature Reserve, within the Český kras protected landscape area about 1 km west of the Koněpruské caves.

Access is via a short detour from the yellow-marked trail between Axamitova brána and Havlíčkův Mlýn; this section also follows the Koukolova hora–Kotýz educational trail. The cleft is about 9 m high and at most 1 m wide, so entry is tight. The arch lies in the Kotýz National Nature Reserve, about 1 km west of Koněpruské caves.

The rock walls display embedded crystal formations in the karst rocks, revealing how the region formed over time. These structures developed through water slowly penetrating and dissolving the limestone over millions of years.