NGR surveys were originally conducted in the McQuesten map area in 1987 and 1988. Stream sediment and water samples were collected from a total of 841 sample sites. A total of 841 original samples were selected for reanalysis. Representative 2 gram splits were successfully recovered from 840 samples. Samples were analysed by an ultra-trace aqua-regia digestion ICP-MS package for 53 elements.

NGR surveys were originally conducted in the Watson Lake map area in 1995. Stream sediment and water samples were collected from a total of 1117 sample sites. A total of 824 original samples were selected for reanalysis. Representative 2 gram splits were successfully recovered from 824 samples. Samples were analysed by an ultra-trace aqua-regia digestion ICP-MS package for 53 elements.

NGR surveys were originally conducted in the Dawson map area in 1976 and 1977. Stream sediment and water samples were collected from a total of 1738 sample sites. A total of 1129 original samples were selected for reanalysis. Representative 2 gram splits were successfully recovered from 1091 samples. Samples were analysed by an ultra-trace aqua-regia digestion ICP-MS package for 53 elements.

NGR surveys were originally conducted in the Mayo map area in 1987 and 1988. Stream sediment and water samples were collected from a total of 861 sample sites. A total of 861 original samples were selected for reanalysis. Representative 2 gram splits were successfully recovered from 861 samples. Samples were analysed by an ultra-trace aqua-regia digestion ICP-MS package for 53 elements.

This data package contains results for parts of the Glenlyon survey area (NTS 105K west and 105L). This information has been provided in a variety of digital formats. PDF files include survey descriptions and details regarding methods, analytical data listings and summary statistics. Raw digital data of original field and analytical information plus new reanalysis results are included in Microsoft®Excel (XLS) format. NGR surveys were originally conducted in the Glenlyon map area in 1988 and covered parts of NTS map sheets 105K and L (Friske and Hornbrook, 1989). Stream sediment and water samples were collected from a total of 1378 sample sites. The work was undertaken by the GSC in conjunction with the Department of Indian Affairs and Northern Development, and the Government of Yukon under the Canada-Yukon Mineral Development Agreement (1985-1989). As part of the 2011 Yukon Database Upgrade Project, original material collected from 1096 sample sites were selected for reanalysis. In 2014, material from the remaining 282 samples sites was selected for reanalysis. Representative 2 gram splits were successfully recovered from a total of 1460 samples. Due to a deficiency of available material, 1 sample was not recovered. The samples were delivered to Bureau Veritas Commodities Canada Ltd. (Vancouver) and were analyzed by an ultra-trace aqua-regia digestion ICP-MS package for 53 elements.