Mountains of Power is part two of the Seasons of Heritage event in Pokemon Go, and it kicks off on Friday, January 7 and runs through Thursday, January 13.
A new rotation of Pokemon will be appearing in raids, and for the first time in Pokemon Go, Mega Aerodactyl will be available in Mega Raids.
The event will also feature Timed Research focused on catching Pokemon, hatching Eggs, and earning Buddy Candy.
Pokemon from the regions of Johto and Sinnoh will be more prevelent during this time such as Zubat, Machop, Nosepass, Barboach, and Geodude.