Wildfires around Gatlinburg, Tenn. killed 14 people and destroyed or damaged more than 1,700 homes and businesses over the past two weeks. It’s considered one of the deadliest wildfires ever in the U.S.

The tragedy prompted the creation of an interactive online map that allowed residents who had been evacuated to remotely pinpoint which structures were spared — days before evacuations were lifted.

The map shows hundreds of red dots in Gatlinburg alone, an indication that a structure was destroyed. In the center of town, dozens of green dots – which indicate lesser damage – are nestled near red dots. Users can search for a property by an address or by clicking on a dot and then zooming in to see the original structure.

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