Wheel C of the Muon System in the ATLAS cavern. [April 2007]	Wheel C of the Muon System in the ATLAS cavern. [April 2007]	Wheel C of the Muon System in the ATLAS cavern. [April 2007]
Second section installed.	Second section installed.	Installing a second section.
An almost completed 'Big Wheel'.	Installing the first section of a 'Big Wheel'.	Lowering a TGC section into the cavern.