Here are a few links which might help you to inquiry further on La Rosiere ski resort and the activities you can practice.
Héliski : heliski is forbidden in France, but because la Rosiere is very close to Italy, you can take off in France, fly until a surrounding Italian summit and ski back to France. A good health and a fair level in ski will anyway be necessary for a 6 hours, 2000 meters hight journey of ski in outstanding area! Never go without a guide unless you know what you do.
Héli snowboard : Le Shop Esi
Heliski : Evolution 2, Ecole du ski Français, call the guide of La Rosiere jp.gaidet@wanadoo.fr
or you might want to contact http://olivier.malet.free.fr/pageheliski.htm
Ski : Plan of the slopes
you will find here the fare for the lifts, and here for the ski school : ESF, Evolution 2, Le Shop Esi
And much more useful information in the l'annuaire.
The Mc Kinley - Apartment Rental in a chalet La Rosière 1850
HIPS and TIPS