perryhunterAs I've said to the other thread a while ago. Will just re-post it here:
Hintertux, Austria - which is open 365 days a year
Ruka, Lapland, Finland - Open: Until mid-June
Tignes, France - Open: Until mid-May
Passo Tonale, Italy - Open: Until July
Riksgränsen, Sweden - Open: Until June
Zermatt, Switzerland - Open: 365 days
These are the resorts that are still open when you want to ski late in the season if ever.
Some faulty information here.
Tignes is open all summer, most likely through August.
Hintertux is indeed open 365 days a year, but will close their park on 20th July until late september.