Guess where this is?

[Nowhere]

Not Carpathians. Much, much older...somehow

[Brian Ellis]

OK, bad guess!! The mountains are obviously oldish, possibly Jurassic limestone? It would seem they are in Europe. Am I correct with ex-Warsaw Pact? Am not very familiar with the geology of that region, but I would guess they are at least 2000 m high from the vegetation, unless they are fairly well North. How about, as another guess, the Urals?

[Nowhere]

Caledonian orogenesis. Yes, ex-Warsaw Pact. At no point they reach 2000 meters, the place with the lake is not much over 1000. Nope, not Urals.

[Brian Ellis]

Could it be Góry Świętokrzyskie with a Benedictine monastery on the highest peak?

[Nowhere]

No.

[Brian Ellis]

Are you sure the origeny isn't Hercynian, rather than Caledonian? If so, my next suggestion would be the Bohemian massif. Certainly, from what I can see, the topography would fit that kind of formation (the same as the Black Forest I mentioned earlier)??? As far I can make out, I can't find any other Caledonian origeny in E. Europe than Holy Cross.

[Nowhere]

Also hercynian. Around the border of the massif.

[KvHagedorn]

Is this indeed in Europe or the Asian part of the former USSR?

[Nowhere]

This has been answered to.

[KvHagedorn]

Where did you answer this? You only specified ex-Warsaw Pact.

[KvHagedorn]

Alright.. the Tatra Mountains?

[Nowhere]

Answer to this question also have been posted :>

(OK, I'll be mercifull : Tatra Mountains are too young; and generally too high)

edit: (and also I ruled out Carpathians after all...)

[KvHagedorn]

Okay.. maybe I'll just opt out of this one..

[Nowhere]

Oh c'mon, not much mountain ranges are left that fit the place and description :>

[KvHagedorn]

Riesengeberge?