A 22-year-old man from Dumfries has been arrested following a woodland fire near Dalbeattie.
The fire started around 5:30pm on Monday 9 July at Southwick Forest.
It took crews more than eight hours to bring the fire under control.
More than 30 firefighters from six units were involved in efforts to tackle the blaze.
Police Scotland said a man had been charged in connection with the fire and "positive lines of inquiry" were being followed to trace a number of others.
The fire has destroyed rough grassland, bushes and trees near the former Southwick Railway station.
Police sealed off a number of roads in the area to allow emergency vehicles to get access to the incident.
The fire covered an area approximately half a mile long and about 100 metres wide.