What is Sydtoppen?

Answer 1

Sydtoppen sounds like Swedish, but might be norwegian too. And it simply means "The Southern Peak". There are probably several mountains whose shape means that there are more than one peak. If there's more than one peak, one of them is likely to be called the Southern Peak. If in Sweden, the most well-known one is a peak of a mountain called Kebnekaise, far to the North.