For late April, plan on driving further up the road to stage. Most of the shaded corners are going to hold snow, but with the road being long and flat the snow will burn off quickly.
That 2' of fresh that joshua335 mentioned is great right now, 2-3 weeks from now is going to be a different story.
Spring riding anywhere is good, but it can change quickly...just because there is snow where you stage from in the morning, don't count on it being there in the afternoon.
There is enough snow they could groom the trail again and try and push some to 21km to keep the road ridealbe but I think they are done for the season.