- This excellent page on the Washington State Department of Natural Resources has a beautiful PDF map of the landforms created by the Cordilleran Ice Sheet. It also has an interactive slide show that illustrates the retreat of the ice sheet.
- Yars’ Revenge (Wikipedia)
Yars’ Revenge is a 1982 video game designed by Howard Scott Warshaw for the Atari Video Computer System (Atari VCS). The game involves a fly-like humanoid alien race known as Yars attacking their arch-rivals the Qotile who have destroyed their habitable planets in their solar system. The players control a Yar and fire or devour an energy shield protecting the Qotile to finish off the enemy with their Zorlon cannon.