Post author By Julieanne Post date December 29, 2015 Home » Attractions » Boyd Site – Natchez Trace Parkway – MS Milepost 106.9 – Boyd Site – These earthen burial mounds were built from 900 to 1,200 years ago. ← West Florida Boundary – Natchez Trace Parkway – MS → Reservoir Overlook – Natchez Trace Compact – MS