[GRASS-user] Module Recommendation Needed

[Rich Shepard]

   I have a drainage basin (watershed; 21,000 ac/9551 ha) with two points of
interest on the main creek draining that basin. These points are
approximately in the center of the basin, not at the outlet. I'm working
with a 5m DEM map (re-sampled from the original 10m resolution) for all
analyses. Using the easting and northing of these two points I want the area
each drains.

   The r.flow module generates flow lines, flow lengths, and contributing
upslope areas. I don't know that this is what I want because I don't know
how to interpret the resulting maps and whether the density map shows all
contributing areas.

   In addition to learning how to interpret r.flow results I'd like to learn
if there's a more appropriate module (or modules) to calculate the
information I need.

Thanks,

Rich