A small group of raiders is, at the time of the first encounter, holding mole rat races on a makeshift track. Although two cages found at the site have the combined capacity of holding four mole rats, only two are there. However, the fresh blood spats and viscera observed inside the tracks might offer clues as to their fate.
The location lies almost right beneath the bridge crossing the highway, following the road leading to Grayditch's western entrance. The two tracks are comprised of short, barbed wire fences going slightly downhill on the highway, and two cages for the mole rats are found, along with two first aid boxes and a standard ammunition box. Several empty liquor bottles, some Jet, and tin cans litter the place. Aside from the two mole rats, the site is populated by five low-level, non-respawning raiders; two of them carrying melee weapons, and three wielding firearms.
- When approaching this location to witness it, be careful not to be seen, as both the raiders and mole rats are hostile and will attack the player character if spotted. Also, be sure to leave any followers at a place where they will be safe, as they may attack the group on their own.
- A pistol shot will always start the race. After the race finishes, the mole rats then meander back to their cages to repeat the process.
- The southernmost raider will always wield a .32 pistol, which they use to start the race.
- Under the overpass north of where the mole rat race is being held, the bridge's eastern abutment has an incorrectly placed texture where the walls don't meet and reveals a crack. Entering the crack makes the player character glitch into the ground below and makes it hard to get back up.
The mole rat race track appears only in Fallout 3.