This military base is situated at the summit of Mount Chiliad, and the player may thoroughly explore the inside. There are several rooms and halls divided across three stories. This base has many entrances. The cable car is now integrated with the base.

This map provides the following information:
- Large Military Base
- The whole interior may be explored (three levels).
- There are three helipads and a cable car at the base!
- For everything else, check out the photos and vids!

The Merryweather Fortress is situated near the peak of Mt. Chiliad. There is a photo on this website that reveals the precise position.

Installation:
1. To install use the Map Editor by Guadmaz, ensure it is up to date and functional before proceeding. 
2. Select one of the following three.xml files and place it in your GTA main folder, or read the readme: 
- MerryweatherFortressP.xml (1705 props, 105 peds; NPCs are your pals and will not harm you!)
- MerryweatherFortressPA.xml (1705 props and 99 peds) (NPCs are your enemies and will attack you once they see you!)
- MerryweatherFortressH.xml (1705 props, 0 peds, most stable, recommended)

Credits:
Sanghelios