This dataset contain all of the 1:20 000 scale index contour information converted from the Provincial Digital Base Mapping Project. These contour arcs are a cartographic product and they do not have any elevation values attributed to the spatial features. These contours require the use of elevation text to properly interpret the elevation value of a specific contour. Index contours are identified every 5th contour line. For Alberta, the index contour intervals occur every 50 metres in relatively flat terrain and every 100 metres in mountainous terrain. Currently, no contour information exists for Banff, Jasper and Wood Buffalo National Parks and also for the Extreme north east portion of the province.