Question: How can I import ARC/INFO ASCII grid files into GRASS?

Answer:  

The procedure to follow depends on the GRASS version, you are using.
Find details below:

Import into GRASS 5.x:
Please use the module
     r.in.arc

to import ESRI ARC-GRID format.

GRASS 5.0 can distinguished between "zero" and "no data".
You can use r.null to change -9999 to "null value". Or you specify
this in the header before using r.in.ascii.


Markus Neteler      Wed Jul 12 2000