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The Epsilon Tracts in GTA 5 are a set of ten collectible items tied to the Epsilon Program side missions, primarily involving the character Michael De Santa. These tracts appear one at a time and must be collected in a specific order GTA 5 Accounts, with each subsequent tract’s location revealed through clues sent by Marnie via text messages after finding the previous one. Collecting all ten tracts is not required for 100% game completion but offers additional lore and a special congratulatory message from Marnie.
1. Mount Chiliad (East Peak) 
   The first tract is found atop Mount Chiliad at the wooden observation platform near the cable car station. It sits by the telescopes on the platform.
2. Palomino Highlands (Underwater Wreckage)  
   This tract lies underwater near the east coast of Palomino Highlands. To retrieve it, you need scuba gear, which you can get by taking a dinghy out to the site of a sunken steam paddle boat. The tract is on the ocean floor next to the wreck.
3. Northernmost Island in the Pacific Ocean  
   Located on the island north of Paleto Bay, this tract requires a helicopter or boat to reach due to the long swim. It sits on the island’s surface.
4. Mount Chiliad Tunnel
   Inside the tunnel that runs through Mount Chiliad, near the south entrance, look for a small set of steps on the right side. The tract is placed atop these steps against a door.
5. Little Seoul (Old Church)  
   At the corner of San Andreas Avenue and Ginger Street in Little Seoul, find the large old church. The tract is located at the base of the building near the entrance.
6. Paleto Cove (Sonar Collections Dock)  
   On the pier of the Sonar Collections Dock business in Paleto Cove, the tract lies on the low dock near the stairs where the Dinghy and Submersible spawn.
7. Richman (Mansion Entrance)
   At the northern edge of Richman, near a mansion with a castle-like appearance, the tract is found inside the entrance walkway, near the stairs leading up to the mansion.
8. Mount Chiliad (Near First Tract)  
   Back on Mount Chiliad, near the first tract’s location, the eighth tract is found on the slope under a large tree close to the telescope platform.
9. Pillbox Hill (Maze Bank Helipad) 
   This tract is on the rooftop helipad of the Maze Bank building, the tallest skyscraper in Los Santos. A helicopter or plane is needed to reach the top buy GTA 5 Accounts.
10. Pacific Bluffs Cemetery 
   In the cemetery at Pacific Bluffs, find a small lake with an island in the center. The final tract is next to a tomb on that island.