(Isabel, MN)  —  The Greenwood Fire continues to grow in size.  Over the weekend, the U.S. Forest Service reported that the blaze now exceeds nine-thousand acres.  That almost doubles the reported size from Friday afternoon.  Crews continue to battle the flames, which they say could threaten structures near County Road 2, Stony Lake, McDougal Lake, and Highway 1.  Another update is expected soon.