on the eastern border of the municipality. It lies in the Gadmer watershed. The municipal borders stretch from the valley floor, with an elevation of , up to the nearby mountain peaks at about . It is located on the border of the Canton of Bern with the Cantons of Obwalden, Nidwalden, Uri and Valais. The neighboring municipalities are Engelberg, Wassen, Göschenen, Guttannen, Innertkirchen and Kerns. There are three glaciers in Gadmen, the Stein Glacier, the Trift Glacier and the Wenden Glacier. Beneath the Stein Glacier is Lake Stein. The most famous mountain in Gadmen is the Titlis. Coat of arms The blazon of the municipal coat of arms is Or a Bar Gules in chief an Eagle displayed Sable crowned, beaked, langued and membered of the first and in base an Alpine Hut of the third. Demographics Gadmen had a population (as of 2011) of 228. , 3.1% of the population are resident foreign nationals. Over the last year (2010-2011) the population has changed at a rate of -1.7%. Migration accounted for 1.7%, while births and deaths accounted for -3.0%. Most of the population () speaks German (268 or 98.5%) as their first language, while one person each speaks French and Spanish. , the population was 53.4% male and 46.6% female. The population was made up of 123 Swiss men (53.0% of the population) and 1 (0.4%) non-Swiss men. There were 102 Swiss women (44.0%) and 6 (2.6%) non-Swiss women. Of the population in the municipality, 162 or about 59.6% were born in Gadmen and lived there in 2000. There were 42 or 15.4% who were born in the same canton, while 32 or 11.8% were born somewhere else in Switzerland, and 28 or 10.3% were born outside of Switzerland. , children and teenagers (0–19 years old) make up 14.5% of the population, while adults (20–64 years old) make up 61% and seniors (over 64 years old) make up 24.6%. , there were 102 people who were single and never married in the municipality. There were 144 married individuals, 22 widows or widowers and 4 individuals who are divorced. , there were 43 households that consist of only one person and 7 households with five or more people. , a total of 100 apartments (67.1% of the total) were permanently occupied, while 35 apartments (23.5%) were seasonally occupied and 14 apartments (9.4%) were empty. , the construction rate of