Well, heres a more descriptive saying:
The mountain should be VERY high, so high the top of it is in the fog and you can't see someone if they're ontop of it and the top should have a FLAT surface that you can build on (very important). It should have a path leading to the top. The mountain should have a rockyish texture but the mountaintop should be snowy, and the grounds that are not part of the mountain just be small buildable hills that are grassy and have some small lakes and rivers/streams.