MIssissippi Gate operates under new hours Published Oct. 3, 2007 BUCKLEY AIR FORCE BASE, Colo -- Buckley's MIssissippi Gate now has new hours of operation. The Mississippi Gate is open 4 a.m. to 8 p.m. Monday through Friday and 8:30 a.m. to 6:30 p.m. on weekends. The Telluride Gate is still open 6 a.m. to 6 p.m. Monday through Friday and closed on the weekends. As always, the Sixth Avenue Gate will remain open 24 hours a day, seven days a week.