Treadmill Running "Road Trip"

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Hi All,

I ready something about a guy who did his running on a treadmill, and then tracked his distance on a map, and was able run "across the country", plan routes to pass "land marks", etc. Has anyone heard of an app or program that does this? Or, do you do this yourself?

I tried to figure it out in Google maps, but can't seem to figure it out. Any suggestions welcomed (except the suggestion to "Forrest Gump" across the country - that ain't gunna happen).