The Bank of Canada is really, really worried about house prices and how much debt Canadians have taken on to cover those prices.

How do we know? Because the bank won’t stop harping about it. It’s almost as if governor Stephen Poloz is campaigning to get people to stop taking on crazy amounts of mortgage debt.

In its latest financial system review, released on Thursday, the BoC decided to add some visual aids to scare you off of borrowing more. In an unusual move, it included some heat maps designed to illustrate just how quickly debt is growing in some Canadian cities.

The maps show households the BoC considers "highly indebted" expanding rapidly from year to year. Heavy debt burdens aren't just a downtown phenomenon anymore; some distant suburban areas have some of the country's most indebted families today.

The darker the red, the more indebted the area.