De Quervain also identified the position and approximate height of Mont Forel, highest point of Schweizerland. Mont Forel was then thought to be the highest mountain in the Arctic Circle area. However, at the time of the British Arctic Air Route Expedition led by Gino Watkins in 1930, Watkins discovered a new mountain range from the air located over 350 km to the northeast. This was the higher Watkins Range with the Gunnbjørnsfjeld, the actual highest summit in Greenland. An attempt to climb Mont Forel was made by Lawrence Wager and Alfred Stephenson in 1931 but the mountaineers were stopped by the ice dome at the top of the mountain.