Erfurter Hütte 1831m (top station Rofanbahn) or if you like to avoid the cable car start hiking at the valley station.
From the top station to the North-east passing the Mauritzalp towards Grubastieg. We follow the trail (Grubastieg) which heads in a wide right turn to the southeast and then slightly to the left towards Grubalacke (small lake). While passing the Rossköpfe in nearly flat terrain, stay in safe distance to their steep faces (wet snow avalanches might go off).
At about 2100m we reach the col of Grubascharte from where you can see the summit slope. Now you traverse towards the summit slope and climb it with a few kick-turns to the top of Rofanspitze, 2259m.
Like ascent, or the direct, very demanding way down to the South (1600 vertical meters to Wiesing).
The downhill to Wiesing requires absolute safe avalanche conditions and has quite steep sections (35°).
We head down to the South, between Sagzahn and Grubasee we keep slightly to the right and reach the Scherbensteineralp (1850m). Now comes a short flat section and just before the Issköpfl we turn to the right (South) and enter the steep slope down to Alpigalp (1480m). We pass the alp and ride through sparse forest till we reach a forest road.
Now the big fun is over and we follow the forest road to Wiesing.
Here we take the bus back to Maurach (every full hour) at the bus stop which you will recognize easily or we take a taxi.
Keep in mind that this downhill option is frequently avalanche endangered and with safe conditions in spring the lower part can already be free of snow.
Alpenvereinskarte 06 Rofan 1 : 25 000: Topographische Karte
Kompass Karte: Achensee 1 : 35 000: Wandern, Rad, Skitouren, Langlauf