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Maps, experiments, and other stuff from SeeTweet, the Twitter mapper.
Recent Tweets @MGrammar

Tracing Interstates.

A quick search for “I-79” finds almost all the hits lying along the route of Interstate 79, a highway running from Erie, PA (the northernmost dot) to Charleston, WV (the southernmost dot). For major highways, SeeTweet can identify their basic shape; compare to the actual map of I-79 (in better quality here.)