Scope and Contents From the Collection: The USU Irrigation Engineering Photograph Collection consists of color slides, black and white negatives, and black and white photographs from projects and studies relating to irrigation but also a variety of water issues such as cloud seeding, ice encasement, salinity, water conservation, and drought studies. Most of the images are from Cache Valley but there are also Utah images from Rich, Juab, and Sevier counties as well as Fruita, Spanish Fork, Circleville, Kanosh, Grantsville,...