The series consists of correspondence, minutes, newspaper clippings, photographs, site plans, promotional fliers, and other assorted materials made by other organizations that the Hoy-Scott Watershed Society accumulated into subject files for reference purposes.

The series consists of photographs predominantly depicting events held by the Hoy Scott Watershed Society, including Salmon Come Home, Salmon Leave Home, Fry Releases, Trail Clean Ups, and field trips. The series also documents the habitat of Hoy and Scott Creek during different seasons as well as construction, excavation, and changes to the hatchery and rearing ponds.

Record types include a scrapbook, silver gelatin negatives in large format cellulose acetate sheets, silver gelatin DOP prints, chromogenic colour negative film strips, slides, and prints.

The item consists of one 1975 City of Coquitlam Street Map.