The Oblique Ontological Terrain series developed out of finding an oblique map atlas on-line published by the USGS in the 1970s. I redrew and enlarged sections of these maps by hand (pen and ink) while looking at them on my iPad. The definitions of the words in the title and the undulating mountainous terrains seemed to intersect perfectly with the isolation of Covid 19 lock-downs and tumultuous social upheaval of our time.