r.lake
r.lake.coords - Fills lake at given point to given level.
Raster (r.*)
ParameterRaster|dem|Elevation|False
ParameterNumber|wl|Water level|None|None|1000.0
ParameterString|xy|Seed point coordinates|0,0
ParameterBoolean|-n|Use negative depth values for lake raster layer|False
OutputRaster|lake|Raster layer with lake