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File contains photographs featuring the tramline at Cassiar which ran from the crushing plant at the mountain mine to the plantsite in the valley (a drop of 427 meters). The first ore was originally transported by truck to the plant until the gravity chute was built in 1953. This chute was replaced with the first aerial tramline model in 1956, which was succeeded by the second model in 1975. This file also includes one photo of the original gravity chute, and one photo depicting a tramline worker.

Additionally there is a collection of eighteen photographs of tramline cars that were being surveyed for damage and condition, and another collection of six photographs of tramline study. The results of this study determined that there was variances in load sizes of the buckets caused by extra material falling off the panfeeder.

This file contains operations at the plantsite:
Below is synopsis of the item level descriptions (see each item for further description)

• locations depicted at Plantsite: mill building, dry rock storage building, tailings pile, gravel pit, power house, and office.
• delivery and installation of a Caterpillar engine, welding repairs underway on a Rustin Diesel Engine in the power house, staff portrait taken by the main office building, and fibre testing
  Not done to item level but integrated into subseries file:
• Photographic negatives included depict milling and packaging machinery in the mill building.
• 93 slides depicting various activities and equipment at the plantsite including: dry rock storage, screens, collectors, loading trucks, bagging, pallets, tailing pile, lab work by engineers, lab equipment, fibre testing, and fibre samples.
• photographs of conveyor foundations, tailings equipment, Grizzly truck, containers from site mechanical inspection, and portable crushing plant in June 1991.
• photos of fibre samples from lab - on display
• collection of photos of 1970 Mill modification Program of April 1978
• collection of photos from 1961 and 1962 of plantsite lab and asbestos samples. file labeled "Suter - Webb VU Graph Analysis" and "Suter - Webb and Turner Comb Analysis"
• Pressure Packer modification photos done by Chapman Industries in 1986
• Powerhouse equipment from 1979
• additional 43 slides of inside the mill in June 1978. Slides were used at a board meeting.
• negatives of inside of mill
• A photo album of 162 photographs depicting various operations at the plantsite including: drill dust collector, outdoor surroundings, conveyors, and the mine site. (album was originally labelled "Cassiar Plantsite).

File contains photographs depicting four different tours that took place at the mine, plant, and towns owned by Cassiar Asbestos Corporation Ltd. Tours include Prime Minister Pierre Trudeau's visit to Clinton Creek in 1968 and Member of Parliament Iona Campagnolo's visit to Cassiar in 1978. Photographs also depict a party of ambassadors touring Cassiar in 1970, and the dedication of a building in the Cassiar plant in the late 1970s.

File contains images depicting various landslides near Cassiar BC. Set of 20 photographs (with 9 corresponding negative strips) date stamped June 1987 depict landslide near creek and dirt road with a Cassiar company truck. Set of 5 black and white photographs found in envelope marked "D. Stewart" are likely from 1988-1989 and depict a rockslide on the south western side of the pit mine, near the tramline. Album entitled “6200 DUMP SLIDE / SPRING, 1979” contains 34 photographs depicting aerial shots of a massive rockslide on the eastern slope of McDame Mountain, originating from the mine waste dump. Several images from album show greenish water pooling in the toe of the slide.

File contains images of mine operations and construction, as well as a variety of other subjects.

• Elements of the underground mine are depicted, including miners working, the marked rock face, yellow ducting and ventilation fan, the portal, mesh rockbolted onto adit walls, shotcrete being applied, and stacked mining construction materials.
• Mining equipment depicted in this file includes underground ore haulage truck, Wabco ore haulage truck, jackleg drill, stoper drill, scoop tram, jumbo drill, conveyor, pickup trucks, unidentified mixing or grinding machine, a cable wagon and half constructed ore haulage truck in the shop, and a continuous miner (also known as alpine miner or roadheader).
• A set of images show a dozer and a lowbed truck transporting a temporary building down the pit mine access road.
• Several images depict drill core fragments, asbestos ore, and geological features of the mine.
• Mining related process are depicted, including a young man sluicing and panning, a mine building under construction, and an unidentified steel frame structure with a hydraulic device suspended on a rail.
• A set of images shows a railway or highway construction project, including stockpile of construction materials, rail cars, caboose, locomotive, front end loader, dump truck, concrete mixing trucks, semi-trucks, and a rail car with large steel drums which are speculated to be specialized for tunnel construction.
• Further images show what is speculated to be tunnel construction.
• A set of images at a high ceiling underground mine which is not Cassiar depicts a man in a suite by a underground ore haulage truck, and other mining vehicles including a crane.
• A set of images depict an ungulate herd, possibly bighorn sheep, on a mountain side.
• The file includes several images which depict personal life, presumably from a family vacation, and access to these images may be restricted. These images depict man with children on a fishing trip, adults and children around a pool, a woman on a motorcycle, and a house and kitchen. Several groups of images are contained in envelopes annotated with dates and “K. Minty”.

File contains photographs depicting machinery, individuals, buildings, and mining processes at the open mine on McDame Mountain, Cassiar, B.C. Some photos depict benches from open strip mining, and two images feature models of the mine (1955 and 1970). Machinery depicted includes shovels, bulldozers, tractors, ore haul trucks (Kenworth, International Harvester, and Wabco), air track drills, blasthole drills, and Ingersoll-Rand Drill. Identified individuals include Fred Murray, R.R. [Kiresan?], C.E. Bronson, Bill Giachino, and "Sam".

File contains photographs featuring:

• the pit mine: fault line, geology, snowdrifts, plowed snow, blast patterns marked by orange cones, mist, and surrounding mountains.
• Pit mine is depicted by aerial photographs and a profile diagram.
• Several photographs also depict what is speculated to be the portal to the underground mine adit in the early phases of development.
• One photograph depicts the shop building in the pit mine, used for maintenance of mining equipment and to house the primary crusher.
• Several photographs show office interiors and personnel and it is speculated that these photographs were taken in the upper floor of the shop building.
• Several photographs depict small sinkholes in the pit mine.
• Mining equipment depicted includes pickup trucks, front end loaders (including a Cat 988), ore haulage trucks, scoop trams, D8 Caterpillar dozer, grader, mining drill rig, jumbo drill, rock hammer, P&H excavator, and wireline extensometer. Photolab envelopes accompanying these materials were annotated “R. Tyne” and “falling ground”. Slide sleeves were annotated “Mine Nov-Dec 1975”, “AERIAL SHOTS OF MINE 1976” and “Phase 8 Dec 1975”.
• Photographs of a Gardner Denver blasting drill at the mine and other ground drills working
• Photograph of proposed power line to #1 switchback in 1975,
• Collection of photographs of a Wsbco truck with corresponding mechanical transfers of those photographs.
• Also photographs a Gardner Denver drill and a Bucyrus Erie drill that was rented to Cassiar Mine in 1974. This collection includes a depiction of an accident with these drills.
• An additional collection of photographs of #709 Drill that was involved in minor accident. A pipe was either damaged or was the cause of the accident.
• Negative collection of photographs with corresponding notes of descriptions.
• Photographs of G.D. 80 Drill - Blasthole drill at work in the open pit.
• Photographs part of Month End Reports from January - June 1980
• Photographs of portable toilets used on Mine site.
• Photograph collection of mine garage January 21, 1988
• Photograph collection of what is believed to be the inside of the mine garage and various storage units and equipment. Marked "Receiver File" in original enclosure.
• Photos of Crane in 1984.
• An Album of 192 photographs of machinery in March of 1976 working at the mine site. Some of the equipment from either the plantsite or the mill is also depicted.

File contains photographs documenting the construction of Cassiar's new mill building. Photos depict early excavation, foundations, framework, construction of all seven stories, sheeting, siding, and roof tarring. Also included are photos depicting the large model of the mill, as well as construction work done on the tramline. Photos taken inside the mill depict flooring work, and milling machinery including feed chutes, screens, fans, wheelabrators, control panels, electrical panels, conveyor systems, vacuum systems, and the fan-driven air system that transported the fiber. Many photos depict construction workers, building supplies, worksites, and equipment including cranes, bulldozers, tractors, hauling trucks and trailer flatbeds. Some photos depict aerial views from the new mill and feature the plantsite, tramline, mine road, mountains, and valley.

File includes six aggregations of photographs which have been assembled in this file in order to maintain the integrity of each group by keeping the photos arranged together, though each group features operations pertaining to multiple files in this subseries. Includes groups featuring photos from 1961, 1965 1971, a helicopter trip, a community album, and a workplace album. Photographs depict images pertaining to the following operations at Cassiar, B.C.: mining, milling, maintenance, labratory tests, and tramline and town operations. Images featuring operations of the company town include the grocery store, bank, churches, school, library, lounge, pool, theater, community center, outdoor recreation, hospital, dentist, cafeteria, bus route, residences, air strip, firehall, laundromat, park, police, and newspaper.

Photographs depict construction of the new mill, each taken from approximately the same distance and featuring two different angles of the building. Construction work progresses from framework to sheeting and siding. Vehicles, piles of building supplies, and a construction trailer are often in foreground, mountains in background. It is believed that these photographs were taken during a labour dispute. Each photo has been annotated on recto with the date and time of day, and some document the number of workers on site. Annotations include: "2 days work", "work gets less & less", "not much for 4 men", "very little done - less than usual low performance", "0° - 20° weather must have thickened their blood".

Photographs depict different construction projects at separate locations in Cassiar. Photographs were originally housed in envelopes with the following annotations: "POLICE STATION. July 15, 1977."; "Aggregates and Concrete (PERMASTEEL)"; "Fibre Storage and Handling"; "Powerhouse Expansion"; "Sewage Collection Plant."; "Sewage Treatment Plant"; "Single Person Accommodations - Site Work."; "Outside Work - Camp Nos. 1,2,3." Photos generally feature the work sites, supplies, vehicles, machinery, and work in progress at each location.

Additional photographs integrated into file include maintenance project on lining of tubes, lining of aspiration hood, and lining of willow fiberizer. Also five photographs of maintenance in the townsite to fix in ground piping.

Cassiar Asbestos Corporation Ltd opened a second mine in 1967 at what became the one-industry town of Clinton Creek, Y.T. File contains photographs depicting different areas of operations at Clinton Creek. Locations include the mine, plant, town, tailings pile, main office, the 40 Mile River, and surrounding area. Town photos depict the grocery store, cafeteria, medical clinic, school, auditorium residential area, Connell Street and power house. File also includes aerial photographs and images depicting forest fighting, photographers capturing the tailings pile, asbestos samples, mining machinery, staff offices, and operations in the mill, lab, and garage.

Additional photographs integrated into file depict Clinton Creek's surrounding area, and three slides of a tailing pile explosion believed to be Clinton Creek.

• File contains photographs done to item level description, depicting miscellaneous people and locations at or around Cassiar, B.C. This includes a photograph of renowned prospector William (“Bill”) Storie, Bill Pratt with a fox, a community gathering in a someone's home, and a hockey game.
• Also included but not to item level is a photo of "David Madore" as part of his application to Cassiar, photo of "William Field" a local hire maintenance mechanic, and photos of a RNWMP Post sign (Royal North West Mounted Police) that depicts annotations "Indian grave" , "Miners Cabin" , "Road House" , "Customs House" , "St. James Church" , "Swansons Store" etc., and 15 negatives of various individuals at what appears to be someone's home.
• Also included is cabin at Boya Lake, which used to be named Chain lake, located off the Stewart-Cassiar highway. This land of this cabin may have been involved legal issues , which was related to people at Cassiar.