The Buffalo Fire west of Denver is only 100 acres, but officials have told thousands of residents to evacuate.
The Buffalo Fire west of Denver is only 100 acres, but officials have told thousands of residents to evacuate.
PHOTO: KCNC
(CNN) —  

Several wildfires in Colorado have prompted thousands of home evacuations and the closing of a national forest, fire officials said.

Nearly 1,400 homes have been evacuated in Summit County, Colorado, and more than 1,000 other homes could be in danger as the Buffalo Mountain wildfire burns nearby, according to Summit Fire & EMS.

The fire began Tuesday about 2 miles west of Silverthorne, a town with about 4,700 residents about 65 miles west of Denver. It has burned 100 acres in the Arapahoe and Roosevelt National Forests, officials said.

Smoke levels Tuesday were not a safety concern, Steve Prosise with the county’s environmental health office said.

“We have not lost any structures at this point,” the agency tweeted Tuesday.

The Buffalo Mountain blaze is one of at least six wildfires burning throughout the state.

The 416 Fire – the largest wildfire in the state – has burned more than 25,000 acres near the state’s border with New Mexico, firefighters’ spokeswoman Jamie Knight said Wednesday.

The fire has only been 15% contained since it was first reported on June 1. More than 1,000 people are fighting the blaze, officials said.

No one has been hurt, and no structures have burned down in the 416 Fire, La Plata County spokeswoman Megan Graham said.

Fuel breaks added to the forests in recent years have saved thousands of homes from “having fire in them,” US Forest Service official Jim Genung said.

A wildfire in Colorado that has burned over 22,000 acres is forcing San Juan National Forest to close its doors to visitors and employees.

The forest, which covers more than 1.8 million acres in western Colorado, announced Tuesday the Stage 3 closure is “to protect natural resources and public safety” because of the danger of the blaze known as the 416 Fire.

“Under current conditions, one abandoned campfire or spark could cause a catastrophic wildfire, and we are not willing to take that chance with the natural and cultural resources under our protection and care, or with human life and property,” said Richard Bustamante, SJNF forest fire staff officer.

Anyone caught violating the closure, SJNF said, could be punished with an individual fine of up to $5,000 or $10,000 for an organization, a six-month prison sentence, or both.

Gov. John Hickenlooper said the state is allocating many resources for the fires in the states.

“Our state agencies are here to support you. As we have proved time and time again, Coloradans are resilient,” he said.

State of local disaster

A helicopter works the wildfire on the east side of Hermosa Cliffs near Hermosa, Colorado.
A helicopter works the wildfire on the east side of Hermosa Cliffs near Hermosa, Colorado.
PHOTO: Jerry McBride/The Durango Herald/AP

La Plata County spokeswoman Megan Graham told CNN that 2,162 structures or homes have been evacuated since the beginning of the 416 wildfire, and 500 residents are currently on pre-evacuation.

The smoke from the wildfire has affected air quality, Graham said. Both state and local public health agencies have issued air quality advisories to stay inside until smoke clears, and have warned those who have health risks to be extra cautious.

The other West Coast wildfires

The 416 Fire was one of three West Coast wildfires that began around June 1.

The Ute Park Fire in New Mexico began May 31 and forced 2,200 people in the area to evacuate their homes within the first three days of the blaze.

A Monday morning update from the Incident Information System showed the wildfire was 77% contained, but Cimarron Canyon State Park remained closed. The Ute Fire has burned 36,740 acres in about 12 days.

No homes had burned, but 14 outbuildings have been destroyed.

A fire in California that burned almost 200 acres has been contained, officials said.

CNN’s Marlena Baldacci, Artemis Moshtaghian and Dave Alsup contributed to this report.