To celebrate the imminent completion of the construction of the southern site,
along with the presentation of the first science results in mid-2005,
the Pierre Auger Observatory celebrated a ceremonial event at the Observatory,
in Malargüe, Province of Mendoza, Argentina in November 2005.
There was an informal reception on the evening of 9 November, followed by formal celebratory activities on 10 and 11 November.
A symposium on Thursday, 10 November included presentations on the origins of the project, the construction, and the first science results.
We concluded on Saturday, 12 November, with a science fair featuring participants from local schools.
More information on the Auger celebration can be found at www.interactions.org/auger.