This does not necessarily mean photographs. If photographs are used, an overlay drawn on transparent paper should be included to allow the reader to recognise the features shown. Photographs should be carefully chosen to illustrate specific points, not simply to make the report look pretty, but it is worth including at least one view of your area to give the examiners some idea of the nature of the terrain in which you were working. Redrawn field sketches, detailed sketch maps, rose diagrams, stereographic projections and summary diagrams will all improve your report. Remember to include scale and geographical coordinates where necessary and always label diagrams as clearly as possible.
Good illustrations save words and are often more easily understood than long descriptions.
Your aim is to be clear and concise. An introduction An outline of the physiography, drainage and location of the mapped area. The introduction should include a brief account of the geological context of the area mapped. The report is not intended to give a review of the history of geological research in the area and reference to previous work should be kept to the minimum necessary. An account of the stratigraphy of the area mapped The stratigraphy should include a brief description of the chief features of each mapped formation and the nature of the boundaries between each unit.