What is the name of the fictional mountain track featured in Gran Turismo?

The fictional mountain track featured in Gran Turismo is Trial Mountain. It is one of the series’ original circuits, created by Polyphony Digital rather than modeled directly on a single real-world venue.

Trial Mountain first appeared in the original Gran Turismo and became one of the franchise’s most recognizable fictional layouts. Its design combines fast sections, elevation changes, tunnels, sweeping bends, and a dramatic mountain setting. The course was intended to feel like a challenging road circuit while showcasing the series’ emphasis on realistic handling.

Players sometimes confuse Trial Mountain with Deep Forest Raceway or Autumn Ring because all three are fictional tracks that recur across Gran Turismo games. Grand Valley, another well-known original circuit, is also a common mix-up. Trial Mountain’s defining visual identity is its mountainous environment and tunnel section.

The circuit returned in later entries, including Gran Turismo 5, and has remained part of the series’ historical track roster. Unlike real circuits such as Nürburgring or Suzuka, Trial Mountain exists entirely within the Gran Turismo universe.