Fact #71

Did you know the Lake of Rage also known as Gyarados Lake was intended to have Pokémon Center, Poké Mart, and even a Pokémon Gym, but was scrapped before the Gold and Silver were released.

This means Johto would of had 9 Gym Leaders or Pryce the 7th Gym Leader gym would have been in the area of the Lake of Rage instead of being in Mahogany Town

The location, where the Pokémon Center, Poké Mart, and Pokémon Gym are inaccessible during normal gameplay.

Down below is a Beta Map of what Gyarados Lake was going to look like.