This GIS dataset depicts the surficial geology of the Falher area (NTS 83N/NW) (polygon features). The data are created in geodatabase format and output for public distribution in shapefile format.
These data comprise the polygon features of Alberta Geological Survey Map 556, Surficial Geology of the Falher Area (NTS 83N/NW).
Our processes included
1. interpreting the airphoto;
2. scanning each 1:60 000 airphoto as a gray-scale, 1200-dpi TIFF;
3. georeferencing images using 1:20 000-scale provincial digital base data (i.e., hydrography and roads) for control;
4. digitizing line features from each image individually and reconciling edge discrepancies;
5. labelling spatial features;
6. checking the quality of the digital file; and
7. proofreading text.