Research Branch

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Stuart-Takla watersheds: terrain and sediment sources

Author(s) or contact(s): J. Ryder
Source: Research Branch
Subject: Watershed
Series: Working Paper
Other details:  Published 1995. Hardcopy is available.


Concern over the potential impacts of logging on sockeye salmon (Oncorhynchus nerka) in the Stuart-Takla watersheds has led to the initiation of a multi-agency project to study the effects of forest practices on fish production and aquatic environments (Macdonald et al. 1992). Results will assist in the development of fish/forestry guidelines for interior areas of British Columbia. The effects of logging and road construction on sediment input to streams are strongly influenced by the erodibility and stability of the local surficial materials. Thus a terrain (surficial geology) map is an essential part of the database for any fish/forestry project.

The objectives of the present project were to produce 1:20000 scale terrain maps and sediment source maps for three watersheds (about 19000 ha) where logging practices are to be monitored. This report describes how these maps were prepared and provides additional information about surficial materials and sediment sources. Some recommendations for land management are included.

Download Working Paper 03: Complete document and maps: PDF file (33797 KB)

Document in 4 parts without maps - Part 1 PDF file (1039 KB)

Part 2 PDF file (887 KB)

Part 3 PDF file (640 KB)

Part 4 PDF file (597 KB)

Download the 6 maps separately - Map 1 PDF file (4634 KB)

Map 2 PDF file (5893 KB)

Map 3 PDF file (4638 KB)

Map 4 PDF file (3394 KB)

Map 5 PDF file (3806 KB)

Map 6 PDF file (9579 KB)

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Updated October 15, 2009