From Hemsedal town centre drive to Ulsåk and turn left towards Lykkja (signposted). Drive ca 10-12 km and look for the signpost to Skogshødn on the left hand side. Parking on the right hand side at Trefta. Follow the marked path, it turns left towards the peak. The last section is stony terrain.
More demanding trip - approx. 825 m vertical - approx. 4,5 km one way.