Blue Ridge Parkway (Southern section)

469-mile parkway connecting Shenandoah and Great Smoky Mountains National Parks — sweeping ridge-line curves, no commercial traffic, no billboards.

Length

252 mi

Sinuosity

1.5x

Elevation gain

6,000 ft

Best season: Fall for foliage, late spring for rhododendron bloom
Typical speed limit: 45 mph
Surface: Consistently well-maintained; sections close in winter due to ice/snow.

Real National Park Service road; figures are well documented, sinuosity is a reasonable estimate.