SPEARFISH, S.D. (AP) — Lightning is suspected of starting a fire on the west side of Crow Peak.
The Black Hills Pioneer reports that the fire started on Saturday. Officials say about 75 acres are affected.
A Bear Mountain fire team and a South Dakota National Guard helicopter crew were fighting the fire Sunday.
Black Hills National Forest spokeswoman Bonnie Jones says the fire is in extremely rugged terrain with no road access.
The Crow Peak hiking trail is closed and people are being warned to stay out of the area.