Dear People
I'm really confused. I really need your help. Constantly getting this
error message when I do the modflow simulation check using GMS 6.0
"The Changing Head Boundary Condition is below the bottom elevation of
cell"

Now what I'm trying to do:
> build a solid model using lithologs
> made a 3D grids and new modflow model
> then interpolated the solid solids to modflow model (grid overlay)
> specified the head boundary conditions (river) and recharge rates
using coverage to modflow comand
> interpolate the top surface elevation.

After that when I check simulation: it gives me above error. not sure
what is happening.

Any help would be appreciated.

Thanks, Zahid