IDAHO SPRINGS, Colo. -- A wildfire was burning near Echo Lake, along Colo. Highway 103, Thursday evening. about Heavy smoke could be seen from Interstate 70, several miles away when the blaze began at about 3 p.m.

Firefighters dubbed it the Devil's Canyon Fire. It had consumed about 15 acres in a very inaccessible part of the Arapahoe National Forest. Smoke jumpers were being called in from Cañon City to help battle the blaze.

It was believed to have been started by a lightning strike.

A much larger fire was burning 12 miles east of Guffey in southern Park County.

The 400-acre Nash Rash Fire forced the evacuation of the Bear Trap subdivision Thursday evening and another subdivision was put on standby. A shelter was set up at the Guffey school.

Air tankers were called in to help fight the growing fire.

Several other wildfires were burning Thursday afternoon. A 20-acre grass fire was just off Interstate 76 between Pecos Street and Sheridan Boulevard in Adams County.

A number of grass fires were also burning near Simla, Colo., and some structures were threatened. The blazes are believed to have been started by lightning strikes.