At last check, the The Saint Charles Fire grew to 317 acres and is still has no containment.
Officials announced yesterday that it was determined that the fire was caused by lightning.
The fire crossed the Custer County line overnight meaning that is burning on both private property and forest service land in Pueblo and Custer County.
There are 260 structures in Custer County that are on pre-evacuation orders.
The fire is expected to continue to grow as the weather forecast is calling for gusty winds over the next few days. Smoke is visible in Custer and Fremont counties.