GEOTEXTILE TASK U.S. Army soldiers unroll a geotextile fabric over the backside of a rock wall on Elmers Island, La., to support the Deep Horizon oil spill cleanup efforts, July 6, 2010. A geotextile fabric is a permeable material used to increase soil stability, control erosion or aid in drainage. The soldiers are assigned to the Louisiana Army National Guard's 844th Engineer Company. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 194657-J-IQS04-301.jpg Photo Gallery