Altepa Gate
From BGWiki
Located in Western Altepa Desert at (I-6/7).
To open the Altepa gate, one must activate four columns: Emerald Column, Sapphire Column, Topaz Column, and Ruby Column. Once all four columns are activated, the gate will stay open for an extended period of time.
Once behind the Altpea Gate, you can reopen it by touching the targetable location, but it will only stay open for a short time.
