This map shows all Danish railway lines, except for such things at short track loops in theme parks, etc.
The lines shown in thin line are those where I think there is still track, but where no regular passenger service exists. It varies how frequent freight service these lines see. Some are rarely ever used, others have one or more weekly sheduled freight trains. Some of the lines have regular steam trips run by preservartion societies.
Double-track is always shown in the double-track thickness, whether or not there is passenger service running there.
I am not current on the status of most of the abandoned branch lines on Jutland and Funen. Some may have their tracks removed by now. If you notice an error in this respect, please correct me.