I am currently working on a poster for the GIS lab to demonstrate the differences in raster resolutions using digital elevation models (DEMs) of the Skagit River and Sauk River confluence up in northwestern Washington. When Matt has checked the poster content, I will attatch a pdf of it. If anyone is looking for a good way to download DEM data, check out any one of many LiDAR sites for various regions, NRCS Data Gateway , or CGIAR Consortium for Spacial Information. Those are the sites I used to gather data for this project. If you want to know which resolution to use, check out my poster when it’s done!