According to the International Civil Aviation Organization (ICAO), a runway is a "defined rectangular area on a land aerodrome prepared for the landing and takeoff of aircraft". Runways may be a man-made surface (often asphalt, concrete, or a mixture of both) or a natural surface (grass, dirt, gravel, ice, or salt).

https://en.wikipedia.org/wiki/Runway

Aviation Aircraft Plane De Havilland Runway Comet Airliner Jet

Just one of my slightly less straightforward DMT drawing ideas. Aya wanted to see more of this...

"As a professor of science, I assure you we did, in fact, evolve from filthy monkey-men."
Professor Farnsworth
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