masking, spatial analysts

[DotLundberg1]

Hello,

I am using arcgis 10.

Trying to interpolate within a mask but the boundaries never reach even when I set the environments to the mask boundaries. Is there a way around this?

See photo for clarity.

Thanks!

[SteveLynch]

Natural Neighbor interpolation does not support extrapolation outside the convex hull.

If you used IDW, you would set the output extent to the mask feature class and use the Mask = mask feature class

-Steve