Just hiked over at Willowdale and I'd give it 70-30. 70% dirt - 30 snow. The snow was crusty and rideable. The snow was firm under foot. The dirt was dirt - not mud and as the weather is going to be colder over the next few days I'd say conditions will improve for the dirt. It looks like the fire road areas are mostly snow though as they were packed down by users. Single track is good to go I'd say. Some icy spots to keep you awake. Have fun!