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[Houxiang Wang GEO Grad 96]

> Try s.surf.tps or s.surf.2d. 

> Sheilah Nolan
> Alberta Agriculture
> Edmonton, Alberta, Canada.

Thanks for your help, Sheilah. But s.surf.tps works with site files, not raster 
files like DEM. I don't have contour lines data. Instead, I have the DEM. 

Thanks in advance for any further helps.

Houxiang Wang
 
Miami University