Edition guides that follow the Rockstar list name Lake Leonida as the site of One-Eyed Willie's, a workshop for off-road mods and hand-painted art on cars.
Rockstar's Ultimate text confirms the location: 'This mod shop in Lake Leonida specializes in off-road modifications and hand-painted automotive artistry.'
Guides describe Lake Leonida as a large lake in the middle of the state and place it in Ambrosia. Rockstar names the lake but has not drawn it on a map.