Brooks Rowlett points to this BBC News article about the OneGeology project, an initiative to make accessible online geological map data from the entire planet. This sounded familiar, like I’d heard about it before, but apparently I never got around to posting about it until now; here’s a story from last March about attempts to get the project under way. The goal is to provide geological mapping data at a scale of 1:1,000,000, which some countries apparently consider too commercially sensitive.