PORTLAND – American Skiing Co. announced Monday that Leslie Otten, the former chief executive and company founder, has resigned from its board of directors.

Otten’s resignation comes amid speculation that Utah-based American Skiing may be looking to sell its Sunday River and Sugarloaf/USA ski resorts in Maine.

American Skiing this month announced that it was selling all its Vermont and New Hampshire resorts, leaving it with just three ski areas – Sugarloaf and Sunday River in Maine, and The Canyons in Utah. The company in December said it was selling its Steamboat ski resort in Colorado.

Otten built Sunday River into the biggest ski area in Maine before taking the company public a decade ago. He later stepped down as CEO but still owns a home near the resort.

In a prepared statement, Otten said he has mixed feelings about leaving the company.

“I truly enjoyed my tenure with the board, but now it’s time to look at other options,” he said.