Because we can't reach our studios and workspaces at the University of Arizona’s Desert Laboratory on Tumamoc Hill, I've been working on multiple ways of visualizing and mapping landscapes (see TumamocSketchbook.com for a 3D cube visualization of Tumamoc, and a previous Field Arts post here on creating a 3D cube of Cave Creek Canyon).
This time I worked on an aerial view, from the north and several thousand feet above Tumamoc Hill but also trying to show the topography and sense of its place on the Earth. Then, looking directly overhead, I used an old-school "hachure" method to show gradients between contours, and handmade walnut ink that is water soluble, to make the shading (I’ll do a future tutorial on my method for creating an accurate hachure-style map). It’s interesting to compare the two viewscapes side-by-side.