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Report: Terrain Inventory for the Clayoquot Sound Area - Year 4

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This report is part of a terrain inventory conducted in the Clayoquot Sound area and approximately 200,300 hectares have been mapped (1:20000 scale). The main objective of the terrain inventory was to identify areas prone to geologic and geomorphic hazards, in particular, landslides, soil erosion, and sedimentation, as well as identify and characterize terrain conditions associated with these hazards. Available is a final report, PDF images, and map plotfiles.

Author:  MADRONE ENVIRONMENTAL SERVICES LTD.

Date Published:  Feb 2003

Report ID:  13528

Audience:  Government and Public

This report is part of a terrain inventory conducted in the Clayoquot Sound area. To date, four years have been spent working on the inventory, and approximately 200,300 hectares have been mapped. It includes a description of the physical environment of the area, mapping procedures, surficial materials present, terrain hazards identified, classification systems used, and management concerns for the project area. The maps and this report may be used to assist in development planning through the identification of unstable and potentially unstable terrain and sensitive soils prior to road construction and timber harvesting in an area. - - - - - The main objective of the terrain inventory was to identify areas prone to geologic and geomorphic hazards, in particular, landslides, soil erosion, and sedimentation, as well as identify and characterize terrain conditions associated with these hazards. In addition, in Year Four sensitive soils were identified according to criteria previously established for the Clayoquot Sound area (Millard et al. 2002). This information can be used to designate soil reserves in the area. - - - - - Terrain stability mapping methodology follows the Guidelines and Standards for Terrain Mapping in British Columbia (Resources Inventory Committee 1996) and Mapping and Assessing Terrain Stability Guidebook (BC Ministry of Forests 1999). The terrain classification used follows see Terrain Classification Systems for British Columbia (Howes and Kenk 1997). The following TRIM mapsheets were used: 92F.032-42. - - - - - Available is a final report, PDF images, and map plotfiles.

Report Type
  Terrestrial Information
 
Subject
  Region - Vancouver Island
  Terrestrial Information - Terrain Mapping
  Watershed Groups - 930 - Vancouver Island (West) Rivers
 


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