In sheer size, the Hayman Fire in 2002 was by far the largest fire, burning almost 138,000 acres. 133-homes and 600 structures were destroyed by the fire. The fire cost a total of $238 million dollars.
The Waldo Canyon Fire in 2012, burned about 18,000 acres and destroyed 346 homes and left two people dead. The cost of the fire totaled up to a whopping $453.7-million dollars.
The Black Forest Fire in 2013. It may not have been the largest in size at 14,280 acres, but it packed a a huge cost, coming in at $420.5-million dollars in damage. Over 500 homes were destroyed or damaged and two people lost their lives.
The High Park Fire in Larimer County in 2012, burned 87,000 acres and destroyed 259 homes. A 62-year old woman was killed in the fire. The Fire Cost almost $200-million dollars.