As of 1/29/2016 the following trails have been groomed.
Hwy 150 to Mirror Lake
Nobblets TH to the Hanna TH
Mill Hollow to Duchesne Ridge.
There have been strong winds in the higher elevations causing the trails to be wind blown and covered. Bad for the trails and avalanche conditions but good for powder in the high country.
The last storm only dropped 4-6 inches at the summit.
Always remember to check for avalanche conditions before you go out. Here is the link for the Uintas.
Utah Snowmobile Association