US Counties as GRASS polygons?

[Donald Newcomb]

Hi all. I've just resubscribed to this list after a LONG absence. I'm
not even sure if this list still has any activity. What I wanted to ask
about is available data for the US in a format GRASS can read. In
particular, is thre and easy to get at source of polygons for all the
counties (parishes in La.) in the US? Thanks.
-- 
Donald R. Newcomb              * newcomb at navo.hpc.mil         
Naval Oceanographic Office     * newcombd at navo.navy.mil
Stennis Space Center, MS 39522 * Voice: (228) 688-5998
FAX: (228) 688-5485            * DSN: 485-5998