Introduction
I started geocaching back in 2007, before the era of smartphones. We set off into the forest with printed papers at home, a hand-held map and a GPS.
I have wanted to hide my own cache for a long time, but the time has only just come. We recently moved to Csobánka and we can see the Csúcs-hegy lookout point from our window. So it was obvious that I would hide my first cache here, and its maintenance will not take much time either.
How to get to the cache:
By public transport from the center of Csobánka [N 47° 38.520' E 18° 58.065' 173 m], you can reach the Oszoly rest area [N 47° 38.714' E 18° 58.285' 205 m] by starting at the Yellow Cross sign (Kossuth street). It is worth parking here if you are arriving by car.
From here, continue up the mountain at the Yellow Cross sign! When you reach the Yellow Lane sign [N 47° 38.702' E 18° 58.474' 275 m], turn right and continue climbing all the way to the top.
Near the summit is the entrance to the old mine [N 47° 38.453' E 18° 58.614' 349 m], here you have to deviate from the Yellow Lane sign towards the lookout point.
Having reached the lookout point [N 47° 38.487' E 18° 58.513' 350 m] it is worth going further and looking for the other lookout point [N 47° 38.540' E 18° 58.473' 344 m]
The cache is located near the highest point of the path connecting the two lookout points.
After finding the chest, it is worth resting in the old mine [N 47° 38.401' E 18° 58.598' 325 m]. The place is perfect for children to play or even have a picnic.
After resting, you can return to the starting point on the same route as you arrived, or there is a possibility of a circular walk for both arrived by public transport or by car.
If you choose this, continue your journey on the Yellow Lane sign from the mine entrance [N 47° 38.453' E 18° 58.614' 349 m] towards the Majdán saddle [N 47° 38.284' E 18° 58.619' 290 m].
There is also a shorter unmarked trail from the mine [N 47° 38.401' E 18° 58.598' 325 m] to the Majdán saddle [N 47° 38.284' E 18° 58.619' 290 m].
From here, continue on the Yellow lane signs to the Majdán saddle junction [N 47° 38.217' E 18° 58.487' 264 m].
From here, those arriving by car can return to the Oszoly rest area [N 47° 38.714' E 18° 58.285' 205 m] at the Red Lane sign.
Those arriving by public transport can return to the center [N 47° 38.520' E 18° 58.065' 173 m] at the Red Cross sign (Táncsics Street).
Csúcs-hegy:
The attached picture shows the Oszoly-Csúcs-hegy range: the back, white and grayish rock formation is the 328 m high peak of Oszoly (an excellent rock climbing spot), while the closer peak, covered with yellowish rocks, is Csúcs-hegy (352 m). From a few kilometers away, from the Kis-Kevély side, it is clearly visible that the top of Csúcs-hegy is made up of different types of rocks than the main mass of the entire range. This fact does not cause any particular excitement, so here we would like to state that there is a gap of approximately 170 million years between the ages of the different colored (and type) rocks! How is this possible? Where did the geological formations deposited during the vast period between the two go?
The previously mentioned whitish-gray rocks (which make up the main mass of the range) belong to the so-called Dachstein Limestone Formation, and were deposited in the shallow seas on the shelf of the Tethys sedimentary basin about 210-200 million years ago, in the Late Triassic. One of the important basic laws of geology is that the age of rocks generally decreases as you move up in a geological strata. Following this guideline, we would expect younger Jurassic, Cretaceous, then Paleocene and Eocene rocks to be deposited above the Triassic limestones, but these are missing from the Oszoly and Csúcs-hegy areas. The Triassic limestones are followed by the above-mentioned yellowish rocks, which were formed in the first half of the Oligocene period (about 30-28 million years ago) and are called the Hárshegy Sandstone Formation. But the big question is still: where did the approx. 170 million years of sediments? The answer is simple: they were destroyed.
A significant part of the Transdanubian Central Mountains became dry land in several stages during the Cretaceous period (as a result of plate tectonic processes), i.e. it emerged from the "world" of marine sediment collectors. At that time, the previously deposited strata (e.g. Jurassic, Cretaceous) were destroyed, and older, deeper sedimentary rocks, such as the Triassic Dachstein Limestones, came to the surface. This may have happened in the Oszoly and Csúcs-hegy areas, where Oligocene shallow-marine coastal sandstones are deposited in the Triassic (a similar destruction took place in the Transdanubian Central Mountains at the beginning of the Oligocene, during which thick Eocene strata were destroyed). Let's admit honestly that this approx. 170 million years is a serious lack of information, so it is not always possible to decide with scientific methods whether the previously mentioned rocks have eroded or not!
Despite the stolen time, it is worth climbing the peaks with fabulous views and collecting beautiful barites in the former mine of Csúcs-hegy.
Mine:
In the abandoned mine on Csúcs-hegy, highly ferruginous, red, fine-grained Oligocene (Limestone) sandstone was mined. The rock is strongly fractured, and hydrothermal fillings can be observed in the cracks, which primarily contain barite and iron oxides. The barite consists of predominantly thick plates and thin plates that are only scattered in small groups. The following mineral list does not include the microscopic accessory minerals of the sandstone! The most beautiful barite is found in the rock pillar standing on the top of the mine and in the debris around it. The mine has long been abandoned, no permit is required.