A quick question for the Vue experts. I have made a USGS DEM model for Crater Lake in Oregon, and I want to fill the crater part only with water without having to raise the global water level around, how can I do this? The elevations on the DEM I made range from 950-2700m with the water level in Crater Lake at about 1820m I think. I have two versions of the DEM, one with the bathymetry in the lake and the other with constant values for the water level in the lake. Any advice about this will be appreciated, thanks. Lester