Complex sentence: Of his many projects, Crozet is probably best remembered for his engineering in the mountains, especially the famous Blue Ridge Tunnel complex which carried the Virginia Central Railroad (later the Chesapeake and Ohio Railway) through the Blue Ridge Mountains at Rockfish Gap.
Split into simpler sentences: Of his many projects, Crozet is probably best remembered for his engineering in the mountains. The famous Blue Ridge Tunnel complex which carried the Virginia Central Railroad (later the Chesapeake and Ohio Railway) through the Blue Ridge Mountains at Rockfish Gap.