Adams County States Attorney Aaron Roseland says Bucyrus is "pretty much completely lost" after the fire gusted through Wednesday. No major injuries have been reported.
Roseland says all Bucyrus' residents have been evacuated and a shelter has been established in the nearby town of Hettinger, about 60 miles south of Dickinson.
Scranton fire chief Ryan Schumacher says firefighters had the blaze under control late Wednesday despite winds gusting more than 60 mph.
Authorities are investigating the cause of the blaze.
Schumacher says "the town is basically gone."