Actually its not a tree now, but monument. I don't know its
original story of occurrence, but i guess, it was built, when
Lithuania was a part of Soviet union. This monument was as a sign
of "Antakalnio kolkhoz". At the moment you can't find any kolkhoz
here, but some farms and other buildings of that years are
left.
Share your own version about this monument in a comments :)
If you came for a cache, the owne recomends you not to go back, but
visit Labanoras regional park. All you have to do is turn to
Žaugedai side (north of the crossroad) and ride about 5km.
Cache is a traditional size rubber box wrapped in a plastic bag.
Coordinates provided are quite precisely, so it shouldn't be so
hard to find it.