It lies below the Col du Tourmalet . It is in the canton of Campan in the Midi-Pyrénées region (department 65) of France and around  from the Spanish border. La Mongie is a winter ski resort offering alpine skiing, snowboarding, snowpark, cross-country skiing, snowmobiles and hiking in snowshoes.
In the summer cycling (on and off road) and the use of trials motorcycles is popular. The village has two small supermarkets, a tourist information centre, gift shops and many restaurants and ski rental shops. The nearby spa town of Bagnères-de-Bigorre offers large supermarkets and shops, restaurants, a casino, an 18-hole golf course and the natural spa baths themselves.