Trail is basically perfect up to the ridge cross-over (the first section of road-to-trail conversion). Map says that's the first ~3.7 miles.

No snow at all on the first section of single-track, before the road-to-trail conversion.  Once we hit the end of the first section of single-track, we tried pushing on, but there was a good amount of snow on that part of the ridge, and it didn't look to be getting better, so we turned back after an eighth mile or so.