points covered in session:
adding in and editing contours lines, this can be done to different values, for example the in the two images below the brighter green lines are 1m contours, the darker are 5m contours
the contours can also be labeled 
the height data can be represented as a heat map as well, then the contours can be overlayed
overlaying different maps
hydrology analysis was also used, for this the vector image must be converted into a raster using feature to raster. flow accumulation creates a raster of accumulated flow to each cell and the image below was produced
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