Champagny is one of the villages of la plagne and is hence connected to La Plagne and via the Vanoise express to Les Arcs.
You will find Champagny stuck on the funny triangle in the top right hand corner of the la plagne piste map. This piste map does not do the area justice as the passes taht interweave between the north and south side of the la plagne area cannot be easliy described in a 3 inch wide 2d representation.
Investing some time in the south side slopes of Verdon Sud and Champagny village will reap rewards.

The Bubble from the villages takes you up to the main meeting area for ski schools at 2000m.
From here you can descend to either the borsiliers chair to stay on the village sector slopes or the verdon sud chair which takes you up to the top of verdon throught the centre of the huge verdons sud bowl.
The Borsiliers chair take you up to a height of around 2200m and a quick descent to the next chair which whisks you on up towards the top of the mountain. From here descent towards la Plagne give you the option of the carella chair which is a long but fast chair taing you to the roche de Mio with possibilities of continuing to the glacier or a short legless up quills which gives you a ski directly down into Plagne centre.
The pisted sking back down to the bubble from here is blue all the way if you need it but beginners should be aware that in low visibility the run back to the bubble can seem like a long way!!
The Verdons Sud bown is a huge playground of powder snow with a wide variety of pisted and unpisted terrrain in close proximity. The pistes interweave on the way down which allows everyine to chose there route and still stay in contact.

Once the steeper pistes become too cut up the off pistes between them provides th classic descent in an out of hollows, bumps and jumps all the way down to the Borsiliers Restaurant and if you have the legs for it continue down to the village down the le Bois piste.
This Piste is a red down through the trees under the bubble to the village. It is often marked up for good skiers only and this is good advice as the narrower sections can cath out tired legs with not much room for error!
The classic descent to the village is however the Mont de la guerre which taks a huge solo route from the to of les verdons all the way doen to the villages. The route has an off piste touring feel due to the solitude from the main pistes and often needs a good snow covering to allow the lower sections to be skiable but in condition it is a superb run back to the village only surpassed by the true off piste runs to Champagny le Haut