Canyon was once an uninhabitable Mars-like world of the Kzin Patriarchy originally called Warhead.[1]

It was being used as a military outpost by the Kzinti, until the planet was hit by a weapon called the "Wunderland Treatymaker" during the war. The attack tore a long, narrow, kilometers-deep crater[1] into the crust approximately the size of the Baja California peninsula. The relatively dense air at the bottom of this artificial canyon created a breathable environment,[1] complete with a sea at the bottom.

At the end of the Third Man-Kzin War it was annexed by Humans.[1] The planet was then renamed for the crater, and settled by humans in a huge city running up the crater wall.


  1. 1.0 1.1 1.2 1.3 Database
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