Officials say they hope to have a Black Hills National Forest fire in southwest South Dakota 50 percent contained if conditions remain favorable.
A Forest Service spokeswoman says no structures have been threatened and no injuries have been reported in the Apple Fire,
which was started by lightning on Wednesday.
It is the largest wildlife so far this season in the Black Hills.
Spokeswoman Beth Doten says the fire covered 546 acres and was 15 percent contained at noon Friday. Doten said the fire is being fought on the ground and in the air, with 132 personnel.