|Format||GIS polygon data. (ESRI, others available by request)|
The hydrogeological map indicates aquifer potential in generalised terms using a threefold division of geological formations:
Highly productive aquifers are distinguished from those that are only of local importance or have no significant groundwater. Within each of these classes the strata are grouped together according to age or lithology.
The 1:625 000 scale data may be used as a guide to the aquifers at a regional or national level, but should not be relied on for local information.
Contact Digital Data for more information.