The flames are centered around Tremont Avenue and Burnt Mill Road.
As of Monday evening, the 45-acre fire is 50% percent contained.
Authorities warn that smoke may affect nearby communities, including Atco, Berlin, and Waterford.
Some local forest roads may be closed as the blaze burns.
Fire officials said crews are conducting a backfiring operation to battle the flames, strategically burning fuel in the fire's path to slow its advance.
There have been no reported injuries, and no homes are currently at risk.