Fonds consists of textual, photographic, cartographic, electronic and promotional films/video recordings related to the mining operations of Cassiar Asbestos Mining Corporation (CAMC) and creation of Cassiar townsite. CAMC records primarily consist of records related to mining operations including construction, engineering, daily mining operations, administration of CAMC, tallies of extractions, labour and union activities, corporate events and visits by dignitaries. Townsite records are primarily visual representations of townsite construction, including the creation of health, education and community services including Cassiar's private hospital, school, library, as well as townsite images. Photographs include documentation of natural and man-made landscapes within the Cassiar region of Northern BC. Other holdings include a near complete run of Cassiar's community newspaper.

The Photographic Materials series consists of 6100 photographs, 900 slides and negatives documenting a wide variety of subject areas pertaining to both the operations of Cassiar Asbestos Corporation Ltd., and the company township of Cassiar, B.C. Types of subject areas found within this series include, but are not limited to: mine, plant, labour, and townsite operations at the company towns of Cassiar and Clinton Creek (including community activities associated therein and townsite development); construction of plant and mine buildings ; mines and equipment not owned by Cassiar Asbestos Corporation, but which are believed to have been used for operational research purposes ; aerial photographs ; company exploration of further mineral deposits outside of Cassiar ; official tours ; community images, promotional material ; executive portraits. The Photographic Materials series has been further subdivided into the following 4 subseries: Exploration & Development, Construction, General (Mining) Operations & (Townsite) Community Operations, and Corporate Affairs.

Collection consists of ten audio reel tapes and eight audio cassette tapes with recordings of stories, obtained by Karen J. Clark and Tahltan community members in the 1960s, 70s, and 80s. Along with Tahltan Native Studies Committee members, including Rose Quash, Rachel Joseph, Anne Gleason, and Judy Joseph, Karen J. Clark traveled around the Telegraph Creek area to record stories of the Elders and procure photographs. This work became the "Tahltan Native Studies" book, produced in 1976.

Documentation includes a lists of recordings with tape descriptions, a short biography of Karen J. Clark, and letters and documents related to her awards and publications.

Textual materials include three "Tahltan Native Studies" books, two sets of accompanying job cards, one set of activity cards, one set of photograph cards, and a course outline. The collection also includes the three book set "Sun, Moon and Owl" and the accompanying reading workbook and teacher's guide. "Sun, Moon and Owl" was written by Karen J. Clark, with grant funding from the B.C. Teacher's Federation, and published in 1975.