Officials continued to express optimism that their efforts were paying off.
"It's getting better every day," said fire spokesman Kelly Wood.
About 2,700 people who live in several Arizona resort communities in the Apache-Sitgreaves National Forest remained under an evacuation order. Fire officials said they were working to make the picturesque hamlets of Alpine, Nutrioso and Greer safe for residents to go home, possibly within the week.
Greer, considered the jewel of eastern Arizona's summer havens, lost more than 20 homes and a couple dozen outbuildings as flames moved into the valley last week.
The wildfire near the New Mexico-Colorado border started Sunday on the west side of Interstate 25 and jumped to the east side later that day. Up to 1,000 people were asked to leave their homes northeast of Raton.
The fire prompted the closure of I-25 from Trinidad, Colo., to Raton, sending summer motorists on lengthy detours. Fire officials said at least two structures had burned, but they couldn't say whether they were homes, businesses or outbuildings.
The blaze more than doubled in size in a matter of hours Monday, to about 9 square miles, as crews worked to protect structures.
"It looks like your worst nightmare," Raton Mayor Neil Segotta said after he saw the plume of smoke rising from the hills outside the city.
Another wildfire in southern Colorado spread to about 1,000 acres and forced the evacuation of a church camp. Crews were attacking the blaze near Westcliffe from the air after it broke out Sunday and quickly spread in dry conditions.
Meanwhile, in southeastern Colorado, crews were close to containing three large wildfires that broke out last week.
Several other fires were burning around Arizona, including a huge blaze near the southeastern border town of Portal that has burned more than 267 square miles since May 8. It was about 53 percent contained. Another fire that broke out Sunday outside Sierra Vista near the Coronado National Memorial also forced evacuations.
Christie and Associated Press Writer Mark Carlson reported from Phoenix; Susan Montoya Bryan contributed from Albuquerque, N.M.
Copyright 2011 The Associated Press.