The pilot was attempting to land on a marked heliski landing site on a ski run called “Nicole”. This was the second landing of the day at this location; the helicopter was carrying 10 guests, 2 guides and the pilot. The first approach was abandoned due to skiers from a previous group waiting on the landing site. On the second approach, visibility was reduced in fog and blown-up snow. The pilot still had the site markers and skiers in sight when it became apparent that the helicopter could not come to a complete hover and touch down would result in a run-on landing. The helicopter touched down on the pilot’s right-hand side due to skiers near the left side of the site. With some forward momentum and sloping ground to the right, the helicopter’s right-side skid dug into the soft snow, resulting in the helicopter rolling over to the right side. The pilot pulled both fire T-handles and exited the aircraft while the guides were assisting guests out from the back seats. There were no injuries or fire.