Cool, crisp air makes it feel like winter again in the mountains. And temperatures in the teens have allowed resorts like Mountain High to make snow, adding to its base and open new terrain.

For advanced skiers and snowboarders, Calamity has reopened offering a challenging thrill. And Conquest lift and trail opens this weekend providing more intermediate terrain.

Mountain High now has a 12- to 16-inch base with mid-winter surface conditions that range from packed powder to hard packed snow. Lesson and rental packages are available for ages 4 and older; night skiing takes place Thursday through Sunday from 5-10 p.m.

“The conditions are the best they’ve been in months and there is more snow in the forecast,” said John McColly, resort spokesman.

Several inches of new snow are expected Friday and Mountain High will continue to make snow whenever possible to ensure consistent conditions on all open trails. The Wrightwood resort has been making snow for the past five nights and will continue to do so as long as conditions permit.

Here’s what it looks like on the slopes at Mountain High. >>>