Smith Casey's Garage

 is an automotive service garage in Fallout 3. is about 8 miles NE of Girdershade, and can be found by following the path of the destroyed elevated highway E of Girdershade until you come across a destroyed road that intersects the highway on your Pip-Boy 3000 map. Follow the road's Northerly path to find 

Apperances
 only appears in Fallout 3.