Headland!

A headland is a coastal landform, a point of land usually high and often with a sheer drop, that extends into a body of water. 

I started inking the map, working on the coastline, rivers and lakes. I was admiring my handiwork when I suddenly saw this shape. Now that's what you call a headland! When the hills and mountains and lettering are inked in, it will probably be a bit less obvious.

It's pure chance that it has emerged like this. The original shape was based on an approximation of the county of Cumbria, the Lake District in England - hence the lakes. At first I was trying to replicate the bodies of water exactly, but it was very cluttered and I abstracted to this form. The outjutting squiggle of a nose I added at random as I was inking. This will be the land of the vikings, though as it's a dwarf map it's not that detailed. Dwarfs don't have much love for water, or other folks for that matter, so they don't bother too much with little details like rivers, towns and such like.