Here's an updated map with larger islands drawn in. Most follow a fault line, but a few are much older formations and just jut out of the ocean. I'm going to skip the finicky little barrier islands that seem so common in reality for the time being, since they probably won't make a huge difference on a continental map (I'm not sure they'd even show up or just add a lot of noise). So now I kind of have to address elevations, I guess . . .

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