Anacostia Crossing

 and nearby Rivet City are the most southeastern areas of the reachable map.

This is the area where Rivet City can be found; the southernmost tip resting against the banks of the river. Also, the Anacostia Crossing Metro Station is located near the tower linked to Rivet City. The station and tunnels are inhabited by several lightly armed raiders. The northbound line terminates at the museums.

Inhabitants

 * Just west of here is a super mutant camp, but in general the area is empty - except for Carlos, asking for water near Rivet City.
 * For those interested in freeing all of the captives, one of them is in the super mutant camp overlooking the Jefferson Memorial.
 * James Hargrave will live here if you convince him to run away from home with a speech check.
 * C.J. Young will also visit here to play with James if he has been convinced to run away from home.