Millau Bridge Coronado Bridge Royal Gorge Bridge New River Gorge Bridge
Interstate 77 Interstate 70 Interstate 64 Interstate 81
Evergreen State Mountain State Gem State First State
Potomac River Monongahela River Ohio River Kanawha River
The Peninsula The Greenbrier The Venetian The Fairmont
Cascade Mountains Sierra Nevada Rockies Appalachia
1.8 million 18 million 800 000 8 million
5% 75 % 25 % 50%
Beckely Charleston Parkersburg Clarksburg
