Hosszú Hill No 2 Cave

The Hosszú-hegy 2nd cave is one of the caves located in the Pilis Mountains within the Danube–Ipoly National Park. It is also described in tourist guidebooks.

Description

In the outskirts of Pilisszántó, on the steep DNy slope of Hosszú-hegy, from 479 HP to K, from signpost number 26 from D, in a forest, at the base of a rock wall, the cave has a natural entrance 2 m wide and 2 m high. The entrance leads to a cave 20 m long that can be walked comfortably without equipment. The cavity system developed in Upper Triassic Dachstein limestone under phreatic conditions. Spherical chambers and spherical stalagmites can be observed in it. The walls have little dripstone and various pea stones. The cave’s gentle, continuously sloping passage ends with a 1.5 m deep drop. It may be suitable for exploratory research. It can be visited freely and without permission.

In 2011 the cave was first called Hosszú-hegy 2nd cave in the literature. In the literature it also appears as Hosszu-hegyi II. number cave (Szablyár, Havas, Sisák 1977), Hosszú-hegyi II. cave (Kordos 1984), Hosszúhegyi II. cave (Bertalan 1976) and Hosszú-hegyi-cave (Kordos 1984).

Research history

It was published in the 1948 Hydrological Gazette that the karst water level descended in Hosszú-hegy and the operation of the Ziribári, Hosszúhegyi, Pilisszántói and Szurdokvölgyi cave spring series ceased. In the 1967 book Pilis guidebook it is mentioned that following the green sign running along the ridge of Hosszú-hegy, continuing on the ridge path from the Hosszú-hegyi-scrub, at signpost number 26 there is a very nice viewpoint. Thirty metres from there, under the rock wall, a small water‑origin cave is located. About 200 m from this cave towards DK are the entrances of the Háromlyukú-scrub. In the latter two caves, the recently deceased nature enthusiast and speleologist Ferenc Szitár carried out exploratory work.

In the Pilis Mountains guidebook published in 1974, in the section describing the caves of the Pilis Mountains, it is mentioned that on the ridge of Hosszú-hegy, proceeding from the Hosszú-hegyi-zsomboly along the ridge trail on the green sign, there is a very nice viewpoint at forestry boundary point number 26. 30 m from there, under a rock wall, there is a small karstic cave. From this cave, about 200 m in a straight line, are the entrances of the Háromlyukú-zsomboly.

The 1975 report of the FTSK Cave Research Department mentions that the map of Hosszú-hegyi II. cave (Szablyár Péter) was completed and was deposited in the map collection of the Hungarian Karst and Cave Research Society. According to the 1976 MKBT Invitation, in 1976 the FTSK Cave Research Department had a research permit for the investigation of the Hosszuhegyi-zsomboly and cave in the Pilis Mountains.

In the manuscript written by Bertalan Károly and completed in 1976 it can be read that the Hosszúhegyi II. cave is located in the Pilis Mountains, in the Pilis valley, in Pilisszántó. It is on the side of a rock wall under a boundary cleft that lies from 479 HP to K. From signpost number 26 to D, in the continuation of the cleft, 20 m slightly to the right, almost at the base of the rock wall, is the cave entrance. The cave is of karstic origin. The part of the manuscript concerning the cave was written based on one manuscript.

The 1977 MKBT Report includes the 1977 report of the Ferencváros Nature Lovers Sports Club Cave Research Department, which mentions that the data of the Hosszu-hegyi II. cave can be found in the scientific special report of the FTSK József Szabó Group.

The 1977 MKBT Report published the 1977 report of the FTSK Cave Research Department's Szabó József Group, which mentions that the entrance of Cave No. II on Hosszú Hill is located from forestry boundary marker No. 26 on the Hosszú Hill ridge to D, in a very karstified area, as shown in Figure 11. The entrance is a dome, which is cut on the D side and is about 3 m in diameter. Through the dome one can reach a short corridor oriented E–D, which, 7 m from the entrance, leads with a 2 m deep step to a cavity that is the current end point of the cave. Five meters from the entrance, under the corridor ceiling, a transverse fissure runs in the Ny direction, which after about 1 m becomes parallel to the main passage again and connects to an extremely narrow passage. The passage likely widens again after the constriction. There are stalactites in the part behind the constriction.

In the early 1960s the filling of the cave was removed. This work was led by Ferenc Szitár, and at that time the original fill level was marked with a painted stripe on the side walls. Dome-shaped formations dominate the cave, there is no borsókő. Near the entrance a few small dripstone formations have developed, most of which are dry and deteriorating. A small cavity is noteworthy, whose entrance is to the Ny from the entrance of Cave No. 2 on Hosszú Hill. In the rock wall above the cave a few rock cavities of a size inaccessible to humans can be seen.