The main road in Ludendorff is Cavalry Boulevard, which has a railway line running across it, but if the player deviates from the road, the roads and rails will also begin to lose textures. This is because the rest of the map doesn't physically exist and several areas are not rendered, being replaced by background textures. However, only a small section of North Yankton is accessible, specifically the region around the town of Ludendorff, as deviating from the game's pre-determined route will result in mission failure. Chronologically, it is the first location accessible to the player in the HD Universe, with the Prologue being set in 2004, four years before the story of Grand Theft Auto IV.
