Last night, WMATA announced that Metrobuses, before shutting down for the evening, would operate on “emergency routes only.” They repeated that this morning, when restoring service. Got it. Oh, wait: which roads, precisely, are the District’s snow emergency routes? That’s a very good question.

It took a tiny bit of diging to find a bulky PDF of the routes, but thanks to New Columbia Heights proprietor and DCist contributor Andrew Wiseman, we can at least pass along this zoomable, mobile phone-accessible map of D.C.’s snow emergency routes.