Sorry for the confusion, my initial comment was ment as a way to say "this can not be mapped without more details". Either updated imagery or more notes with some GPX traces is needed to be able to map the area correctly.

In response to Filikuns komment above:
That is only shown on sources not licenced for usage in OSM. Lantmäteriet has not approved these sources for OSM usage and do not have a compatible licence. These should never be used as sources for edits of OSM.