Pueblo Grande Museum and Archaeological Park is currently featuring the Historic Judd Aerial Survey, which resulted from the 1930 collaboration between the Smithsonian Institution in Washington D.C., United States Department of War and founding director of Pueblo Grande Museum, Odd Halseth.

In an effort to photographically record ancient Hohokam canals before agricultural and urban growth eliminated the remains of this unique culture, this survey reportedly yielded close to 1,400 aerial images that were laid into mosaics and closely annotated with field work by Halseth. In the fall of 1930, the resulting research was then forwarded to Neil M. Judd, curator of American Archaeology at the Smithsonian's National Museum. Shortly after the survey, the Department of War impounded the photos, later releasing them to the care of the Smithsonian Institution who kept them in archival cold storage to present day with little activity in the intervening years. Now 75 years later, these 1930 photos are on exhibit, detailing Hohokam canals in the Salt and Gila River valleys. The exhibit runs through early September 2006.

For more information, visit www.pueblogrande.org or call (602) 495-0901.