All 'start of the week at Rockstar there was a real uproar due to the large data theft that leaked several screenshots and videos regarding pre-alpha builds of GTA VI. 

The community, however, was not satisfied with what it saw, and just like the cartographers, even using the data Google Maps tried to trace what should be the main lines of the game map for Grand Theft Auto VI.

Of course this could differ substantially from the real game map, since it is still based on speculations and build leaks in pre-alpha, and therefore as always in these cases we invite you to take everything with a grain of salt.