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This series consists of silviculture experiment files created from 1910-2005 by the Squamish Forest District, a division of the Vancouver Forest Region. The ministry defines silviculture as “the art and science of controlling the establishment, growth, composition, health, and quality of forests and woodlands to meet the diverse needs and values of landowners and society on a sustainable basis.” These files document the historical silviculture treatment work that has been undertaken on specific areas of land that are referred to as openings.

The majority of the records are silviculture opening files. These files were created from the 1970s on, but may include earlier records. Openings document the historical silviculture treatment work that has been undertaken on specific areas of land that are referred to as openings. These files regard changes in the forest cover, changes in prescriptions, cut boundaries and records involving impacts on silvicultural treatments. Files may contain a wide variety of record formats including textual records, maps and photos. The textual records include computer printouts, photocopies, cards, field notes, reports and correspondence.

All opening files include maps or site plans, a forest attribute cover form and other documents related to the opening. Additional documents commonly found in files include: various survey or assessment forms; computer printouts titled the History of Crop Establishment and Tending which provides a history of use and information regarding prescriptions, site preparations, reforestation and stand tending; prescription documents, which provide the management plan for the area; stand tending cards and reports, which show completed forest treatments; and various reports.

Other types of records relate to audits and assessments for major licensees, a 5 year silviculture plan for the district, and
silviculture trials.

The ministries responsible for creating these records, and the years that they were responsible, are:
Ministry of Forests (1976-1986)
Ministry of Forests and Lands (1986-1988)
Ministry of Forests (1988-2005)

The records were classified as 12380-30, 18765-20, 18750-20 and 18990-20 in the Forest Operational Records Classification System (ORCS).