This spatial layer displays lakes that have had full or partial surveys, and contains information regarding the dates of those surveys and an indication of the data collected on each survey date

The attribute table included in the dataset provides some limited metadata information that is specific to each lake. This includes the: * survey year * survey method * original map scale This dataset should be used for discovery of Bathymetry data. It provides no bathymetric information, but allows users to discover where bathymetry data exists and in what format. Related datasets: * [Ontario waterbody location identifer](https://data.ontario.ca/dataset/ontario-waterbody-location-identifier)

Lake summer survey sites in the Cariboo Region

This GIS dataset depicts the surficial geology of the Ray Lake Area (NTS 84D/NW) (GIS data, line features). The data were created in geodatabase format and output for public distribution in shapefile format. These data comprise the line features of Alberta Geological Survey Map 557, Surficial Geology of the Ray Lake Area (NTS 84D/NW).

Alberta Geological Survey partnered with Alberta Environment (AENV) Northern Region to compile and analyze groundwater data in the Cold Lake-Beaver River Drainage Basin. This compilation and analysis assisted AENV and its stakeholders to complete an update of the Beaver River-Cold Lake Water Management Plan. This digital file provides the contours of the hydraulic-head distributions for the Grand Centre, Sand River, Ethel Lake and the Muriel Lake formations, and the Empress Formation Units 1 and 3 based on reported static-water levels from water wells within the study area.

This GIS dataset depicts the surficial geology of the Crooked Lake area (NTS 83K/SW) (GIS data, line features). The data were created in geodatabase format and output for public distribution in shapefile format. These data comprise the line features of Alberta Geological Survey Map 563, Surficial Geology of the Crooked Lake Area (NTS 83K/SW).

This GIS dataset depicts the surficial geology of the Ray Lake Area (NTS 84D/NW) (GIS data, polygon features). The data were created in geodatabase format and output for public distribution in shapefile format. These data comprise the polygon features of Alberta Geological Survey Map 557, Surficial Geology of the Ray Lake Area (NTS 84D/NW).

This GIS dataset depicts the surficial geology of the Crooked Lake area (NTS 83K/SW) (GIS data, polygon features). The data were created in geodatabase format and output for public distribution in shapefile format. These data comprise the polygon features of Alberta Geological Survey Map 563, Surficial Geology of the Crooked Lake Area (NTS 83K/SW).

This dataset contains the total annual releases of radionuclides released directly to the environment through direct discharge (i.e. releases to water) from the closed mine sites near Elliot Lake, Ontario, Canada.Note that there is no stack emissions for the Elliot Lake.

This dataset is the digital compilation of Lake Sediment Analyses was done by the GSC for the Precambrian Shield area of Saskatchewan.This dataset represents the water and sediment geochemistry for select lakes in Saskatchewan. This product was produced by the Geological Survey of Canada as Open file 7746. During the intense level of activity directed toward the exploration for uranium in the 1970s, the Saskatchewan Geological Survey and the Geological Survey of Canada funded the collection of several thousand samples of sediments and waters from lakes around the Athabasca Sandstone. All sediment samples were analyzed for U, Cu, Ni, Pb, Zn, Co, Fe and Mn. Selected samples were analyzed for a wide range of additional elements. All lake waters were analyzed for U, F-, and pH, and several hundred samples were analyzed for additional elements and parameters. The Summary Table that precedes this text shows the numbers of samples and elements, and the source of data from which the 8,939 samples listed in the 9 Tables are derived. Over 20 years ago the data in these listings were coded into the Saskatchewan Geological Survey’s ‘Geochemical Data File’, designed in the 1970s (Dunn, 1978b, 1979), and developed by SaskComp (the computer programming department of the Saskatchewan government at that time). The only database listed in the present report that was not in the Geochemical Data File was GSC Open File #779, jointly produced by the SGS and GSC (Coker and Dunn, 1981, 1983) and containing data from detailed surveys of the IAEA/NEA Athabasca Test Area (adjacent to Wollaston Lake). The old Geochemical Data File was state-of-the-art at the time, and data have been available for public scrutiny since inception in 1977. Demonstrations of the File were given at the SGS Open House meetings in 1977 and 1978. The explosive development of personal computers during the past 20 years has made the original Geochemical Data File something of a dinosaur, and the data have been difficult to access and manipulate. The present data file is a compilation that has resulted from detailed evaluation, streamlining, editing and breakdown of the data into simplified Excel files that can easily be manipulated by anyone with a modest knowledge of computers. These data are of historic value and their re-evaluation could assist in current uranium exploration programs. Of particular value is their use in environmental studies, since they represent a 1970s snapshot of the chemistry of the northern Saskatchewan environment prior to mine developments. At the start of sample collection in 1975 Key Lake had not been drained and the only mine site was the pit at Rabbit Lake. This compilation has divided the data into 9 tables, each presented as a shape file. There are 6 shape files of lake sediment data (1LS - 6LS) and 3 shape files of lake water data (4LW - 6LW). Lake water samples were from the same sites as the lake sediments listed in files 4LS - 6LS, hence they have been given the same numeric designation. The data are mostly compatible among the Tables. However, although analytical methods and quality control protocols were similar, they were sufficiently different to warrant treating the data as separate listings. For any regional plotting of data extracted from all Tables these differences should be considered when interpreting distribution patterns. Of particular relevance is that all sediment samples were analyzed for U by neutron activation, with the exception of 158 samples (Table 2LS) where determinations were by fluorometry. These data sets should be fully compatible, because the two techniques provide similar values. Comparison of U data from sediment samples collected and analyzed over four years, then reanalyzed as one batch has shown excellent precision and accuracy (Coker and Dunn, 1981). All U in water determinations were by fluorometry, and all F- by selective ion electrode. Loss on ignition (LOI) data were determined by ignition at 500o C for 4 hours. Table 1LS This data set comprises samples collected by SGS between 1975 and 1978. Samples were digested in aqua regia and all trace elements, except U (see above), were determined by atomic absorption spectrometry (AA). **Please Note – All published Saskatchewan Geological Survey datasets, including those available through the Saskatchewan Mining and Petroleum GeoAtlas, are sourced from the Enterprise GIS Data Warehouse. They are therefore identical and share the same refresh schedule.