Video #97
In this video (just under 7 mins) I use the Spatial Analyst extension to create a Slope (measurement of steepness) Raster from a SRTM TIFF and then an Aspect Raster to show direction of slope.
See the next video (#98) which follows on with the analysis as it shows how to extract the slope raster data into some start and end points derived from a railway network.
15 май 2021