FRISCO, Colo. (AP) — Skier visits to U.S. resorts in the Rocky Mountains were down about 5 percent this past winter, which equates to about 1 million fewer visits than the prior winter season.

The National Ski Areas Association tallied about 21 million visits to the region's slopes for 2017-2018 in a preliminary study.

Despite the decline, several resorts set visitation records. They included Wyoming's Jackson Hole, Whitefish and Bridger Bowl in Montana and Schweitzer Mountain in Idaho.

Low snowfall amounts early in the season in the southern and central Rocky Mountain region prevented the industry from boosting business overall.