We recommend starting your adventure at Spiro Mounds, where our friend, Dennis the Archaeologist, will breathe life into the mysterious people of Spiro Mounds. It’s wise to plan a couple of hours to take-in all the indoor exhibits, see all the amazing sites, and walk the interpretive trails along the mounds.Next, make the short drive to Southern Belle, in Heavener. It’s a lunch you’ll never forget. You’ll enjoy some mouth-watering food and soak-in the fantastic view, all from the comfort of Southern Belle’s retired, refurbished train car. The amount of sheer joy the car now brings to diners handily explains why Southern Belle was lovingly dubbed, “America’s Sweetheart.”Then, venture out to Heavener Runestone State Park. (What better way to burn-off some of that delicious lunch you just ate?!) Enjoy the incredible views the nature trails have to offer on your way to the Heavener Runestone — said to have been carved by ancient Vikings. Hear the history, see the artifacts, and enjoy your visit!Finally, head over to Poteau and start your drive up Cavanal Hill. Measuring 1,999 feet – a mere foot shy of being a “mountain” – Cavanal has earned the title of the “World’s Highest Hill.” The view from the top is always breathtaking, but fall colors and sunsets are the icing on the cake.