Looks like they maintain the road from June Springs up to the Myra parking lot at the KVR trail. Was still slippery due to snow/ice. After crossing the KVR trail the road is not maintained and has a fair amount of snow, but I was able to follow it to about the 10km mark where apparently the road ends (couple spots where it got pretty uneven so high clearance is needed). It seems to become a hiking trail from that point on with no vehicle access.