Milne was a prolific author and his work has been widely disseminated through numerous publications and exhibitions. In addition to these (listed below), he contributed images to the several books (as well as numerous others through his stock agency representatives). His work has been in five solo and three group calendars, and used for the covers of at least 18 books (not including his own), 31 magazines/brochures/published reports, 20 CD covers and included in 14 CD-ROM/video productions. In addition, his individual prints, series, or mural images are represented in the permanent collections of 30 notable public and corporate galleries and educational institutions.
The Milne fonds consists of over 486,000 original images in slide format, 52,000 in digital format, various prints including limited edition sets and exhibition prints, 2.9 metres of textual records, as well as audio, film and video, Milne’s reference library, his slide presentations, and a selection of equipment including a variety of cameras and lenses. A substantial portion of Milne’s work documents sacred spaces, specifically indigenous sites, throughout the world. The natural environment and society’s relationship to it was also a focus of Milne’s work, and the collection documents flora, fauna, and landscapes over a thirty-year period. Milne was the first photographer to have considerable success with books documenting the beauty of the prairie, and he remains well-known as the pre-eminent photographer of Saskatchewan. His work varies from the documentary to experimental, abstract, and fine art.