I have a large set of contours that I received broken down into several different subsets. I have merged most of the subsets together creating a larger set of contours in three different files. I have then created three different raster datasets from the contour shapefiles, however in that process, the rasters have alot of zero elevation areas that shouldnt be there. How do I get rid of these zero elevation areas to make a more accurate digital elevation model? I was hoping the topo to raster tool would interpolate in between the different contours to clean up those areas but it did not. But, some of the zero elevation areas are in places where there is a stream, pond, or reservoir. Please help.
You've started in the right place, TopoToRaster will do what you've asked (create a seamless elevation model from contours). There are a lot of options and it can be a bear to get right, as the length of the overview implies. I found it helpful to read the documents for the source tool, ANUDEM, so I could understand more of the theory.
Before that though, I'd start by