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Sub-subseries consists of sales and marketing records concerning Northwood Mills that were created or accumulated by Adam Zimmerman during his tenures as the company's President, Director, and Chairman. Includes financial records, reports, and marketing studies. Also includes records of Northwood Mills of Canada Ltd. (British sister company), Candawa, Eighty-Four Lumber Company, and McBride Lumber & Building Supplies.

Sub-subseries consists of records relating to environmental issues for Northwood Pulp and it's renamed successors Northwood Pulp and Timber Ltd. (1972-1998) and Northwood Forest Industries Ltd. (1979-1998). These records were created or accumulated by Adam Zimmerman during his tenures as the company's President and Director, as well as his Presidency of Northwood Pulp's parent company, Northwood Mills. Northwood Pulp was impacted by the growing environmentalism movement in the late 1960s and early 1970s, when concerns about its pollution arose.

Sub-subseries consists of records relating to the Canada-United States Free Trade Agreement (CUSFTA), which was reached on October 4, 1987, and signed by the leaders of both countries on January 2, 1988. Includes publications produced by the Canadian government regarding the new Free Trade Agreement, such as a synopsis of the agreement, informational pamphlets, pamphlets about potential positive impacts to various economic sectors, economic assessments, and press releases. Also contains a copy of Bill C-130, the act to implement the Free Trade Agreement.

EP 660 was a conventional silvicultural trial established in 1967 which involved single species plantings of lodgepole pine (Pl), white spruce (Sw), and Douglas-fir (Fd) at different spacings. Three installations were established in the Prince George - Vanderhoof area: Buckhorn Ridge, Bobtail Road, and Chilco Creek.

General details on EP 660 are given by:
Coopersmith, D., M. McLellan, and J. Stork. 1997a. Experimental Project 660 overview of three experimental installations – a 30-year progress report. B.C. Min. For., Prince George For. Reg., Res. Note #PG-12.

Details on the Buckhorn installation are given by:
Coopersmith, D., M. McLellan, and J. Stork. 1997b. Experimental Project 660 30-year progress report: Buckhorn Installation. B.C. Min. For., Prince George For. Reg., Res. Note #PG-12-1.

At the Kenneth Creek installation (Ministry of Forests E.P. 886.13), forest floors and mineral soils were sampled on 3 occasions: 1996 (by Brockley), 1999 (by Sanborn), and 2005 (by Sanborn). In addition, bulk density measurements and geochemical analyses were conducted for selected depths on the "Bowron" pedon previously published in the mineralogical study by Arocena and Sanborn (1999); this pedon was sampled on the southeastern edge of the installation beside the main access trail.

The 1996 sampling (2 years after treatments began) involved forest floors and 0-15 cm depth mineral soils, sampled at 10 random points in each plot; there were no measurements of forest floor mass or mineral soil bulk density.

The 1999 and 2005 sampling was more intensive, and included forest floor mass and mineral soil bulk density measurements, as well as a greater depth of mineral soil sampling (0-20 cm; 20-40 cm). Note that the mineral soil bulk density measurements were not repeated in 2005; 1999 values were used in subsequent analyses.

Results from the 2005 soil sampling were published along with those from the Crow Creek (spruce) installation in:
Brockley, R.P. and P.T. Sanborn. 2009. Effects of repeated fertilization on forest floor and mineral soil properties in young lodgepole pine and spruce forests in central British Columbia. Technical Report 052. B.C. Ministry of Forests., Research Branch, Victoria, B.C. http://www.for.gov.bc.ca/hfd/pubs/Docs/Tr/Tr052.htm [Note that this publication included mineral soil data only for the 0-20 cm depth.]

During Dr. Sanborn's years with the Ministry of Forests research program (1991-2002), he worked on forest fertilization research with silviculturist Rob Brockley (retired; formerly at Kalamalka Research Station, Vernon, BC). Brockley’s work in the 1980s and early 1990s had documented the widespread pattern of sulphur deficiencies across the BC interior, and the superior response of managed stands to fertilization treatments involving sulphur (S) and nitrogen (N) rather than nitrogen alone.

To progress farther, different methods for understanding the fate of sulphur fertilizers in forests and soils were needed. Sanborn contacted the stable isotope group at the University of Calgary which had done important work on the fate of pollutant sulphur emitted by oil and gas extraction and processing in Alberta, using natural abundances of sulphur stable isotopes as a tracer. This was the beginning of a collaboration with Dr. Bernhard Mayer of the University of Calgary, and also with his German soil scientist colleague, Dr. Joerg Prietzel (Munich Technical University).

The research team engaged in the Cluculz retrospective study (E.P. 886.10) for the BC Ministry of Forests.

An ancillary project involved resampling (2002 - foliage, 2003 - soil) of a previously fertilized (1990) installation (E.P. 886.10) south of Cluculz Lake in order to compare the longer-term effects of different fertilizer sulphur forms on soil and foliage chemical properties. Results were published as a journal article and a Ministry of Forests Extension Note:

Sanborn, P.T., J. Prietzel, R.P. Brockley. 2005. Soil and lodgepole pine foliar responses to two fertilizer sulphur forms in the Sub-Boreal Spruce zone, central interior British Columbia. Can. J. For. Res. 35 (10): 2316-2322. https://cdnsciencepub.com/doi/abs/10.1139/x05-138

Sanborn, P. and R. Brockley. 2005. Sulphur deficiencies in lodgepole pine: occurrence, diagnosis, and treatment. Ext. Note 71. B.C. Min. For., Res. Br., Victoria, B.C. https://www.for.gov.bc.ca/hfd/pubs/docs/en/En71.pdf

Sub-subseries consists of financial records of Northwood Pulp and it's renamed successors Northwood Pulp and Timber Ltd. (1972-1998) and Northwood Forest Industries Ltd. (1979-1998). These records were created or accumulated by Adam Zimmerman during his tenures as the company's President and Director. Includes accounting, tax, and bank records. Also includes auditor's reports and financial summaries.

Sub-subseries consists of sales records of Northwood Pulp. These records were created or accumulated by Adam Zimmerman during his tenure as the President of Northwood Mills, the parent company of Northwood Pulp.

Sub-subseries consists of market research and competitor analysis for Northwood Pulp and it's renamed successors Northwood Pulp and Timber Ltd. (1972-1998) and Northwood Forest Industries Ltd. (1979-1998). These records were created or accumulated by Adam Zimmerman during his tenures as the company's President and Director, as well as his Presidency of Northwood Pulp's parent company, Northwood Mills. Includes files pertaining to various individual forest products companies acquired by Northwood and conglomerated under the umbrella of Noranda Mines, and later, Noranda Inc.

Sub-subseries consists of records relating to the government liaison required by Northwood Pulp and it's renamed successors Northwood Pulp and Timber Ltd. (1972-1998) and Northwood Forest Industries Ltd. (1979-1998). These records were created or accumulated by Adam Zimmerman during his tenures as the company's President and Director, as well as his Presidency of Northwood Pulp's parent company, Northwood Mills. Includes correspondence with government officials at various levels (municipal, provincial, federal), records of negotiations with the BC government for pulp harvesting areas and licenses, and material regarding provincial stumpage rates and timber appraisal.

Sub-subseries consists of records related to environmental issues for Noranda Forest Inc. These records were created or accumulated by Adam Zimmerman during his tenures as the company's CEO (1987-1991), Chairman (1987-1993), and Director (1987-1994). Includes correspondence with government, members of the public, media, and environmental figures Bob Bateman and David Suzuki. Also contains Environmental Committe meeting material, records regarding dioxin and pulp mill effluent, and national environmental initiatives.

Sub-subseries contains records of the Canadian Forest Industries Council (CFIC), which was founded and lead by Adam Zimmerman during the Canada-US Softwood Lumber Dispute. Includes correspondence, memoranda, reports, meeting materials, records of the participation of other forestry industry association, and government liaison documents.

Sub-subseries consists of records relating to the beginnings of the softwood lumber dispute, commonly referred to as Lumber I. In 1982, when the U.S. lumber industry petitioned the U.S. Department of Commerce (DoC) to impose a countervailing duty. Ultimately, the DoC found that Canada's stumpage system was not specific to any single industry and thus not countervailable. While the DoC made this claim, the United States International Trade Commission (USITC) believed that these Canadian imports did in fact hinder U.S. producers. The U.S. lumber industry chose not to appeal.

Sub-subseries consists of records relating to the third phase of the Canada-U.S. Softwood Lumber Dispute, commonly referred to as Lumber III. In 1991, Canada informed the United States it was withdrawing from the Lumber II Memorandum of Understanding. In response, the Department of Commerce (DoC) initiated a countervailing duty investigation, resulting in the DoC imposing countervailing duties. This time, the Department of Commerce's determination was reviewed by a binational panel organized under the Canada-U.S. Free Trade Agreement (CUSFTA). The panel found that the DoC's determination could not be supported by substantial evidence. In 1996, the United States and Canada reached a five-year trade agreement, The Softwood Lumber Agreement, officially ending Lumber III.

Sub-subseries consists of legal records created or accumulated by Adam Zimmerman in his various roles with Noranda Mines (Comptroller, 1961-1966; Vice President and Comptroller, 1966-1974). Records relate specifically to the Gaspe Copper Mines Lawsuit and its appeal. Zimmerman was heavily involved in the financial aspects of the legal case resulting from the 1957 Gaspe Copper Mines strike (Murdochville Strike).

During a year away from studies in 1987-88, Dr. Paul Sanborn developed a successful grant proposal to the Science Council of BC (SCBC) to pursue a postdoctoral project with Dr. Tim Ballard in relation to sulphur-deficient soils in BC and prescribed fire. This project built on an existing broadcast burning study conducted by Macmillan Bloedel Ltd. near Port Alberni on Vancouver Island, led by Bill Beese (later at Vancouver Island University). Dr. Sanborn's work addressed sulphur forms and amounts in the soils at these sites, and the chemical processes influencing sulphur availability in relation to prescribed fire.

Only one part of this work was eventually published:
Sanborn, P.T. and T.M. Ballard. 1991. Combustion losses of sulphur from conifer foliage: Implications of chemical form and soil nitrogen status. Biogeochemistry 12: 129–134. https://doi.org/10.1007/BF00001810

The remainder of the work was documented in the Project Completion Report to SCBC, dated February 28, 1990.

Thirty-four of the accompanying project data files were selected for archival retention.

The Sulphur stable isotope tracer study (E.P. 886.15) field experiment was installed in young lodgepole pine stands at two sites in the Prince George Forest Region in 2001, with fertilizer treatments applied in late 2002. These sites are designated as Kenneth Creek (east of Prince George) and Holy Cross (south of Fraser Lake). (The Kenneth Creek installation was established near plots of the older E.P. 886.13 in the same stand.) Full experimental details, including pretreatment soil and foliar date, were given in:

Sanborn, P., R.P. Brockley, B. Mayer, M. Yun, J. Prietzel. 2005. Sulphur fertilization of lodgepole pine: a stable isotope tracer study (E.P. 886.15): Establishment report. Tech. Rep. 020. B.C. Min. For., Res. Br., Victoria, BC. http://www.for.gov.bc.ca/hfd/pubs/Docs/Tr/Tr020.htm

The Kenneth Creek site was attacked by mountain pine beetle in 2006, resulting in at least 80% tree mortality. In 2013, the stand was levelled in order to enable replanting, and due to poor communications within the Ministry of Forests, the opportunity to salvage this installation was lost. The Holy Cross site was hit by a wildfire in 2010, and most of the research plots were destroyed.

Preliminary results from foliar analysis, sufficient to demonstrate that our stable isotope tracer approach could detect fertilizer uptake, were published in:

Sanborn, P.T., R.P. Brockley, and B. Mayer. 2011. Stable isotope tracing of fertilizer uptake by lodgepole pine: foliar responses. Can. J. For. Res. 41: 493-500. https://cdnsciencepub.com/doi/full/10.1139/X10-222

Sub-subseries consists of sawmill operations records concerning Northwood Mills that were created or accumulated by Adam Zimmerman during his tenures as the company's President, Director, and Chairman. Includes records regarding sawmill operations in the Okanagan, specifically Penticton Sawmills, Church Sawmill, Boundary Sawmills, and the Princeton and Okanagan Falls sawmills.

Sub-subseries consists of building materials operations records concerning Northwood Mills that were created or accumulated by Adam Zimmerman during his tenures as the company's President, Director, and Chairman. Includes the records of acquired companies, including Prestige Structures, Northwood Building Materials, Northwood Properties, Northwood Panelboard, and Norbord Waferboard.

Sub-subseries consists of market research and competitor analysis for Northwood Pulp and it's renamed successors Northwood Pulp and Timber Ltd. (1972-1998) and Northwood Forest Industries Ltd. (1979-1998). These records were created or accumulated by Adam Zimmerman during his tenures as the company's President and Director, as well as his Presidency of Northwood Pulp's parent company, Northwood Mills. Includes market surveys, research on other pulp companies, and files on individual competitors.

Sub-subseries consists of records relating to labour relations for Northwood Pulp and it's renamed successors Northwood Pulp and Timber Ltd. (1972-1998) and Northwood Forest Industries Ltd. (1979-1998). These records were created or accumulated by Adam Zimmerman during his tenures as the company's President and Director, as well as his Presidency of Northwood Pulp's parent company, Northwood Mills. Includes records regarding labour negotiations, union agreements, the Northern Interior Lumberman's Association, and the Pulp and Paper Industrial Relations Bureau.

Sub-subseries consists of operational records for Northwood Pulp and it's renamed successors Northwood Pulp and Timber Ltd. (1972-1998) and Northwood Forest Industries Ltd. (1979-1998). These records were created or accumulated by Adam Zimmerman during his tenures as the company's President and Director, as well as his Presidency of Northwood Pulp's parent company, Northwood Mills. Contains records regarding chip, timber, and pulp production; freight, gas, and water services required for operation; and Operating Committee meeting documents.

Sub-subseries consists of administrative records for Noranda Forest Inc. These records were created or accumulated by Adam Zimmerman during his tenures as the company's CEO (1987-1991), Chairman (1987-1993), and Director (1987-1994). Includes general correspondence, the resume of Adam Zimmerman, annual reports, AGM records, human resources documents, and public relations material, among others.

Sub-subseries consists of financial records and documents regarding potential acquisitions for Noranda Forest Inc. These records were created or accumulated by Adam Zimmerman during his tenures as the company's CEO (1987-1991), Chairman (1987-1993), and Director (1987-1994). Includes files on individual companies that were investigated for acquisition by Noranda Forest Inc. Also contains financial records on investments, tax issues, and the company's public offering.

Sub-subseries consists of administrative records created or accumulated by Adam Zimmerman in his various roles with Noranda Mines (Comptroller, 1961-1966; Vice President and Comptroller, 1966-1974; Executive Vice President, 1974-1982). Includes correspondence, strategic planning documents, reports, promotional material, meeting documents, and more. Also includes records relating to Noranda Minerals, which was created from a reorganization of some Noranda Mines companies.

Sub-subseries consists of created or accumulated by Adam Zimmerman in his various roles with Noranda Mines (Comptroller, 1961-1966; Vice President and Comptroller, 1966-1974; Executive Vice President, 1974-1982). Records relate to the mines owned and operated by Noranda Mines, such as Pamour Porcupine, Tara Mine, Brenda Mines, Horne Mine, Gaspe Copper, Mattagami Mines, and Hemlo, among many others. Includes records about some of these individual mines and copper/zinc operations, as well as records from a managerial level regarding the various mines.

Sub-subseries consists of administrative records concerning Northwood Mills that were created or accumulated by Adam Zimmerman during his tenures as the company's President, Director, and Chairman. Includes general correspondence files and Board of Directors documents. Also includes financial, legal, and personnel records.

At the Kenneth Creek installation (Ministry of Forests E.P. 886.13), a 7-year litterbag experiment was installed October 15 1997, following the methods of the Canadian Intersite Decomposition Experiment (Trofymow et al., 1998), as also applied by Sanborn and Brockley (2009) in an experiment connected to E.P. 1185. Litterbags contained two initial materials – pine needle litter collected from the Control and ON2 (highest rate of annual fertilization) treatments – were emplaced in the Control and ON2 plots.

Results of this experiment have not been published, but data have been shared with collaborator Bjorn Berg (Uppsala).

The Archie Creek site is the informal name used for a research installation established in 1971 east of Prince George by the Canadian Forest Service, and subsequently abandoned by the end of that decade. Dr. Paul Sanborn revisited the site in 1995, and sampled forest floors and mineral soils across a range of conifer-broadleaf mixtures established by natural establishment of broadleaf trees among planted lodgepole pines.

Details of the site conditions, sampling methods, and results were published in:
Sanborn, P. 2001. Influence of broadleaf trees on soil chemical properties: A retrospective study in the Sub-Boreal Spruce Zone, British Columbia, Canada. Plant and Soil 236: 75–82. https://doi.org/10.1023/A:1011973402414

Litterfall was collected at the Kenneth Creek installation for 4 years (May 1995-May 1999), using the litter trap design of Hughes et al. (1987). Initially, 10 traps were installed at random locations in each of the 18 plots (all 6 treatments), but an analysis of litterfall data for the first collection period and consultation with a statistician resulted in relocation of traps so that greater sampling intensity would be gained for a smaller number of treatments (4 treatments, with 15 traps per plot).

Sub-subseries consists of market research and competitor analysis records concerning Northwood Mills that were created or accumulated by Adam Zimmerman during his tenures as the company's President, Director, and Chairman. Includes assessments of other companies for possible acquisition and to keep aware of competition. Also includes appraisals of pulp and timber lands.

Sub-subseries consists of administrative records concerning Northwood Pulp and it's renamed successors Northwood Pulp and Timber Ltd. (1972-1998) and Northwood Forest Industries Ltd. (1979-1998). These records were created or accumulated by Adam Zimmerman during his tenures as the company's President and Director. Includes general correspondence, Board of Directors meeting materials, annual reports, legal and personnel records, and documents relating to various associations with which Northwood had memberships or relationships.

Sub-subseries consists of records relating to the Northwood Pulp Mill in Prince George, which was owned by Northwood Pulp and it's renamed successors Northwood Pulp and Timber Ltd. (1972-1998) and Northwood Forest Industries Ltd. (1979-1998). These records were created or accumulated by Adam Zimmerman during his tenures as the company's President and Director, as well as his Presidency of Northwood Pulp's parent company, Northwood Mills. Includes planning material, construction records and progress reports, documents from the official opening, records regarding the acquisition of the pulpwood harvesting area, and material regarding expansion of the mill.

Sub-subseries consists of records relating to the government liaison required by Noranda Forest Inc. These records were created or accumulated by Adam Zimmerman during his tenures as the company's CEO (1987-1991), Chairman (1987-1993), and Director (1987-1994). Includes correspondence with government officials at various levels (municipal, provincial, federal).

Sub-subseries consists of records relating to the second phase of the Canada-U.S. Softwood Lumber Dispute, commonly referred to as Lumber II. In 1986, a U.S. lumber industry group, the Coalition for Fair Lumber Imports, petitioned the Department of Commerce (DoC). The United States International Trade Commission (USITC) once again arrived at the conclusion that Canada's exports unfairly impacted American producers. This time, the DoC did find Canadian forest programs to be countervailable and set a preliminary duty of 15%. Before the subsidy was imposed, the United States and Canada agreed to a Memorandum of Understanding that created a phased tariff. One of the terms of the MOU was that Canada levy an export tax on lumber traveling to the United States. Provinces that were affected had the chance to reduce this tax, if they performed any action meant to counterbalance their subsidies. British Columbia had the tax removed in 1987 while Quebec had it partly lifted in 1988.