St. Aubin medical facility

 (called Underground Lab ingame) is a location in Point Lookout found beneath the Point Lookout Lighthouse.

Notable loot

 * 38 Mesmetron Power Cells
 * Several Gatling Lasers, AER9 Laser Rifles, and AEP7 Laser Pistols
 * Microwave Emitter
 * 3 Pre-War Books

Appearances
appears in the Fallout 3 add-on Point Lookout.