Thanks Tom for the quick reply. I appreciate your help and it is the right way to go. I have a small problem at the beginning because the original raster resolution did not produce a suitable points layer for the intersection process. [ATTACH=CONFIG]26280[/ATTACH] As you can see in the first figure zone features of the "zones" layer did not capture any single point and as a consequence I have empty lines in my database result (actually not empty but -9999 missing values). All I have to do was to resample the grid by 10x and then the point conversion generated a denser layer that was effectively intersected with the zone layers as it shown in the attached figure. [ATTACH=CONFIG]26283[/ATTACH] Once again, thanks a lot for your help. Best JC
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