At a school with very few features that would provide good control sites for orienteering we may mark fixed litter bins. But at another school where there are plenty of suitable features near them we would leave them out. In some instances we have been reduced to marking drain covers, although these are normally omitted. Our aim is always to make the finished map attractive to look at, clear to read, without being over-crowded with minute detail, but with sufficient detail that varied orienteering courses can be planned. For a school site the surveying can take anything between an hour-and-a-half and a full day, depending on the size and complexity of the site, and how many changes have been made since the O.S. map which was provided as our basemap was last updated. Finally we check the direction of magnetic north with a compass. On complex sites we sometimes like to take photographs of particular areas to help get the relationship between features correct when we come to draw the map up. We do not intentionally include any children in these photographs, and they are deleted once the map is drawn.
Drawing up We scan the tracing film to create a bitmap file. We now start a new map, with two background layers which we align – the scanned survey and the previously drawn basemap. We trace over the lines, but this time using the correct symbols for a wall, fence or hedge etc. We fill the open areas with the correct colour - yellow for grass, green for dense vegetation or brown for tarmac or paving, and mark the point features with the correct symbols. We try to do this soon after visiting the site relying also on memory to supplement the recorded detail. Once finished we print out a draft copy of the map.