In-stream monitoring data sets are often very large. They are difficult to display on a map product in a way that allows a visual interpretation of both the spatial and temporal variability of the data. AML routines have been written that allow large amounts of data to be exhibited on a map, using rosettes to display graphical summaries of the data at the points where the data was recorded. This allows the data to be shown in a temporal context, while also displaying it in a fashion that is positionally accurate and takes up very little map space. Examples from watersheds in Idaho, Oregon, and Washington will be presented.