SEATTLE -- A fast-growing ski resort company is planning to purchase Washington state's largest ski resort.

The Seattle Times reports Denver-based Alterra Mountain Company announced plans Thursday to acquire Crystal Mountain Resort, a 2,600-acre (1,050-hectare) property about 80 miles (129 kilometres) southeast of Seattle.

The company says the sale is expected to close in the fourth quarter of this year. The company currently owns 13 resorts in the U.S. and Canada. It recently acquired Solitude Mountain Resort in Big Cottonwood Canyon, Utah, east of Salt Lake City.

Crystal Mountain is expected to be added to the company's resort network for the upcoming ski season.