- June Mountain's last day for the 2001 - 2002 season was April 14th, 2002. Hope you had as much fun this past winter as we did. Have a super summer and we hope to see you next season! June Mountain's last day for the the 2001 - 2002 Season was April 14, 2002. We are now closed for the summer. Hope to see you next season! Call 888.JUNEMTN for more information. June Mountain has the stuff that ...www.junemountain.com