Lewis died of gunshot wounds as he was traveling the Natchez Trace at age 35. At the time, he was governor of the Upper Louisiana Territory and was traveling to Washington, D.C. on financial matters when he stopped at Grinder's Inn. It's still not known whether he committed suicide or was murdered, as later on since 1848, accounts suggest. He was buried later on the day he died by a traveling companion.Grinder's Inn, where Lewis died, is part of the monument and there area includes interpretative displays about Lewis' life. There is a campground, picnic area, and hiking trails.