The municipal sewers is an unmarked location in the Divide. It is found southwest of Sunstone Tower and south of the Cave of the Abaddon.
The municipal sewers is located off a scaffolding exiting the Third Street Municipal Building on the north. It is a small zone with two tunnelers inside it. In the middle is a damaged eyebot with an upgrade needed for the achievement/trophy "ED-Ecated".
The municipal sewers appear only in the Fallout: New Vegas add-on Lonesome Road.