The Skyway continued to travel through the mountain, but its passageway was now enclosed in similarly themed ice caves. Following the closure of the Skyway in 1994, the cavernous holes through which the Skyway buckets had traveled were partially filled in. The holes in the Tomorrowland face remained mostly intact, and a grotto filled with glimmering crystals was installed nearby. An abandoned crate labeled Wells Expedition was also added as a tribute to Frank Wells, who had died earlier that year. Wells had completed six of the Seven Summits, with only Mount Everest remaining at the time of his death. The bluish glow of the crystals could be easily seen from the ground at night. With the exception of the filling of certain holes, the actual external structure of the mountain remained largely unchanged from its original construction.