An example of 3D view of results of geophysical prospection - aquifer prospection in the tectonicaly fractured rock subbase surface depression:

This is a view a rock subbase surface depression according to results of VES, HR refection seismics, DRP (granits surface under cca 100 m claystone layer in the semidesert environment. The yellow arrow is the optimal place for drillhole.

The following drillhole yield was about 1,5 l/s.

(Simplified)