I've skied Hotlum/Wintun in July. With the snow pack we have right now, it will probably still be good into late July possible into August.
I will ask around about the snowmobile shuttle.
Road is still closed at McBride Springs on the mountain. Skinned up from McBride Springs to the cabin today. Dust on crust. It was a long haul but nice to be there. Still haven't heard when the county is going to start working on the road.
I'm looking for a snowmobile ride too!