make polygons

To make some @#$*%$@#% polygons in arcgis (e.g. trace fluvial terrace deposits): 1. Open Arc Catalog 2. In the Location bar, navigate to the folder where you want to put the polygons (shapefile) 3. File -> New -> Shapefile 4. Name it and choose Feature Type -> Polygon 5. If you want, edit the Coordinate System Select -> Projected Coordinate Systems -> (UTM NAD 1983 10 N for local stuff) In

hillshade from seamless data

It's ArcGIS time. First, let's reflect on how Arc is the anti-google in terms of user-friendliness. It's a constant source of exasperation and I am here to document my exasperation and hopefully avoid some in the future. Starting from the beginning, here's an example if you want to download high resolution topographic data (1/9 arc second, where 1 arc second at the equator is ~31 m)  from the