What is the contour interval on Toporama maps?
The data used for contours comes from the National Topographic Database and is the same data used for contours on printed topographic maps. As a result, the contour interval on Toporama maps varies in the same way as they do on the printed topographic maps as they were produced individually over many years. The interval can be anywhere from 10 to 200 metres. In some areas of the country contours and spot heights are even shown in feet. This is indicated by the use of a m for metres or ft for feet beside the contour or spot height number. The numbers will assist in determining the elevation in any particular map. Index contours are shown as slightly thicker lines to make them more prominent. Due the varying contour interval, index contours can be shown as every fifth, second or even every contour. The table below shows what contour values have been styled as index contours.
