Survey Metadata

NGR stream

British Columbia


BC RGS stream sediment and water survey, NTS 104M, northwest British Columbia, 1992.

Location map

(requires an Internet connection)

External Links

Index Link
BC EMPR Regional Geochemistry ( LinkID=673 more)
Metadata page for BC Regional Geochemical Survey RGS 37 (NTS 104M). Includes links to related data.

Survey Description

Helicopter and truck-supported sample collection was carried out during July and August of 1992 in the Skagway map area.  A total of 785 stream sediment and 773 stream water samples were collected from 741 sites.  The average sample site density was 1 site per 10 km2 over the 7,500 square kilometre survey area.  Field duplicate samples were collected in each analytical block of twenty samples.  The survey also included the collection of 43 sediment and water samples in Atlin Provincial Park and Recreation Area.  The data are published in British Columbia Regional Geochemical Survey RGS 37.

This survey was carried out using National Geochemical Reconnaissance (NGR) protocols.

Sampling Procedure

Primary and secondary drainage basins with catchment areas of less than 10 km2 were sampled.  Sediment samples weighing 1 to 2 kg were obtained from the active stream channel.  Samples were primarily fine-grained material mixed with varying amounts of coarse sand and gravel, glacial sediments and organic material.  Contaminated or poor-quality sample sites were avoided by choosing an alternate stream or by sampling a minimum of 60 metres upstream from the identified source of contamination.  Unfiltered water samples free of suspended material were collected in 250 mL bottles

Publication History

Index Publication
1 Jackaman, W., Matysek, P.F. (1993). British Columbia regional geochemical survey NTS 104M - Skagway; stream sediment and water geochemical data. British Columbia Ministry of Energy, Mines and Petroleum Resources, Geological Survey Branch, BC RGS 37. (more)

Project History

Index Year Project
1 1992-1993 Northwest British Columbia 1992 stream sediment and water survey (more)

Geographic Extent

Minimum Latitude Maximum Latitude Minimum Longitude Maximum Longitude
59.08° 60° -136° -134°

The geographic extent of the survey is defined by the following polygons:

  • Covers the northwest-southeast half of NTS 104M (Skagway) in northwest British Columbia.  It is bounded by Alaska to the south and west.


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