1 ski area
12 ski areas
2 ski areas
25 ski areas
34 ski areas
5 ski areas
22 ski areas
3 ski areas
13 ski areas
44 ski areas
21 ski areas
16 ski areas
30 ski areas
4 ski areas
9 ski areas
51 ski areas
6 ski areas
11 ski areas
26 ski areas
19 ski areas
28 ski areas
17 ski areas
33 ski areas
10 ski areas