Big Walk Blue Tower Location and Coordinates
Blue Tower is around 3540, 1850. Its golden key unlocks all three trains through the main station at 3380, 1740.

The useful answer
Blue Tower is around 3540, 1850. Its golden key unlocks all three trains through the main station at 3380, 1740.

Step by step
- Use the Map Room to mark the northwest route.
- Climb to the tower roof.
- Return five red pieces, then shape the key toward the station.
Why players get stuck here
The blue tower and blue Map Room are different buildings; use the coordinates and train tracks to distinguish them.
Confirm the destination before spending rewards
Look for the tower in relation to the northwest rail network rather than navigating by color alone. Blue Tower releases the key that activates all three trains; the large blue Map Room near Red Tower is a different structure.
After submitting five rewards, keep one named player on key duty and follow every cutter marker downhill toward the main station. A partly shaped key will not start the trains.
Verify it before moving on
Use a fixed landmark and one set of coordinates when giving directions. If the group splits, leave one player at the landmark while the others search so everyone has a reliable point to return to.
Related Big Walk help
Sources checked
- Blue Tower route — primary fact and step cross-check
- Official Big Walk FAQ — platform, multiplayer, save and accessibility facts