TUBAC, AZ (KOLD) - Many pockets of Santa Cruz County sit on floodplains, vulnerable to storm water and rising rivers. But now, new mapping indicates that more of the county sits on this type of land than previously thought.

"There have been changes in the system," explained John Hays, floodplain coordinator for Santa Cruz County. "Flood events have occurred over the years that have rearranged the channels."

A house fire in Rio Rico displaced a man and a woman Monday afternoon, according to the Red Cross.

The house, which is located in the 1200 block of Avenida Gloriosa, caught fire at about 2:30 p.m.

The estimated cost to fight the Murphy Complex, which includes the Murphy Fire and Pajarita Fire, is now $3 million, according to officials.

The fire is burning on the Nogales District in the Coronado National Forest, about five miles east of Arivaca and four miles west of Tubac, Arizona. The Murphy Complex has burned through 67,051 acres and is 50 percent contained.

Firefighters are trying to keep the fire from burning in the Sycamore Canyon area about six to seven miles from Rio Rico. The canyon is a haven for several endangered species, the news release stated.