Gråbergan defines the border between Trondheim and Malvik. Highest points are 496 meter above sea level. Access by trail from Saksvikvollen (parking). Follow eastbound trail towards Bjørnstadtjønna, and pass Finn-Pålstuggu on your way up. There are some minor climbing challenges on the trail when inside the forest.  From Gråbergan you have a magnificent view. You can also continue on to Jervfjellet, which is the highest point of the mountain.
Below: Mind your steps as the area between Gråbergan and Jervfjellet consists of wet terrain.