A pre-evacuation order is effect for 146 homes in the vicinity of the rapidly growing Airpark Fire near Durango.

The blaze sparked from lightning at around noon Sunday, according to officials. It was originally estimated at 125 acres but has since grown to more than 500.

The affected residents live in the Trappers Crossing area and other places to the northwest of the fire. The smoke column, we're told, is quite visible from Durango.

Officials say it is burning on Southern Ute Indian Reservation land.

A gas well pad threatened earlier by the fire has been shut down by Chevron, and firefighters are working with other gas companies to prepare in the case of other well pads being threatened in the area.

A temporary flight restriction order is in place for Animas Airpark.

A Type III helicopter has been making water drops most of the afternoon and  heavy air tankers have been assigned, as well.

Firefighters and engines on scene have responded from Durango Fire and Rescue, the U.S. Forest Service, Southern Ute and Ute Mountain Ute Indian Tribes and Jicarilla Apache Indian Tribe. The Durango Interagency Type III Incident Command Team is en route.