Echo Mountain is ending its ski season Sunday instead of in late April.

Marketing director Scott Gales says the ski area just west of Denver had planned to stay open until April 29, but the season was done in by warm temperatures and little snow in March.

Echo reported nine inches of new snow Tuesday, but it’s not enough to extend the season. It was 56 degrees on the slopes Thursday afternoon. Gales says it’s hard to keep conditions prime for skiing and riding with temperatures that warm.

Monarch Mountain also is ending its season Sunday, which is one week earlier than originally planned.

Buttermilk, Crested Butte, Keystone, SolVista Basin and Telluride also end the season Sunday. Ski Cooper, Powderhorn and Sunlight have already closed.