 This Landsat-7 image shows the facility in relation to the nearby town of Natanz. September 07, 2001 (c) www.globalsecurity.org |  Even at 30-meter GSD, the plant is visible. September 07, 2001 (c) www.globalsecurity.org |  September 20, 2002 (c) www.globalsecurity.org |  February 29, 2004 (c) www.globalsecurity.org |
 Construction of the tunnel entrance to the underground buildings. September 20, 2002 (c) www.globalsecurity.org |  Completed entrance, with entry to the tunnel concealed within the larger rectangular building. February 29, 2004 (c) www.globalsecurity.org |  Construction of underground buildings. The larger two are finished with layers of fill dirt and poured concrete to protect against aerial attack. September 20, 2002 (c) www.globalsecurity.org |  The completion of the underground facility leaves no part of the three large buildings visible. February 29, 2004 (c) www.globalsecurity.org |
 Foundation work on three smaller structures. September 20, 2002 (c) www.globalsecurity.org |  In the completion of the three structures, one can see that the aboveground signature does not match the earlier foundation work. The northernmost structure is completely underground, and the southern two buildings do not match the original shape. February 29, 2004 (c) www.globalsecurity.org |  A network of about two dozen defensive positions now lines the 4.7 mile security perimeter. February 29, 2004 (c) www.globalsecurity.org |  Detail of defensive posts at Natanz perimeter. February 29, 2004 (c) www.globalsecurity.org |
 A security checkpoint now guards the southeast entrance to the plant. February 29, 2004 (c) www.globalsecurity.org | |