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Old 09-07-2009, 02:13 PM   #1 (permalink)
jkp1187
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Join Date: Jun 2009
Location: Pittsburgh, Pennsylvania
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Pittsburgh - Mammoth Cave, KY - Columbus - home

Planning on taking a trip from Pittsburgh to visit Mammoth Cave, KY in the next few months, with a stop in on Charleston, WV on the way out and Columbus, OH on the way back.

Any suggestions on the most fuel-efficient routes?

I suspect sticking to the main interstates will make the most sense, but wanted to check to see if anyone had a better suggestion.

(Also open to suggested sights to see on the way out!)

Thanks.

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