| Abstract/Description or Keywords |
Detailed or reconnaissance terrain stability mapping of eight areas, at terrain survey intensity levels (TSILs) C, D and E, has been completed for Weyerhaeuser Canada Ltd. (Vavenby Division), Cleatwater Forest District. This report describes terrain stability mapping in the Cedar-Cook-Whitewater, Blue River, Finn Creek, and Foam Creek areas.----- Detailed terrain stability mapping (DTSM) at TSIL C was carried out for operable forest in areas of predominantly moderately steep to steep slopes. Reconnaissance terrain stability mapping (RTSM) at TSIL D was carried out for relatively stable upland areas with operable forest, for all areas of inoperable forest, and at TSlL E for alpine areas). Terrain mapping and interpretations were carried out according to current provincial standards. Terrain mapping was done by interpretation of 1:15,000-scale, colour air photos, followed by field checking for TSIL C and TSIL D areas. Criteria used for interpretations were developed &d refined by field work and air photo interpretation. Digitizing was done by Atticus Resource Consultants Ltd. (Coquitlam), with both terrain and inteipretations on 1:20,000-scale maps. Digital files were prepared in Microstation (IGDS) and ARCINFO formats.----- This report augments the information shown on the maps. It provides discussions of mapping methodology, criteria used for interpretations, and mapping reliability, a general overview of the physiography of the study areas, additional information about surficial materials and geomorphological processes, and recommendations for forest management. Photos referred to in this report are shown in Appendix 1. terrain stability, erosion, sediment, landslide |
