Hawaii
Easy
Chain of Craters Road
Paved descent through active volcanic moonscape.
Feature: Scenic
Hawaii
Difficult
Mauna Loa Observatory Road
Brutal climb up the world's most massive volcano
Hawaii
Moderate
Munro Trail to Lana’ihale Summit
Lanai's highest point with five-island views
Hawaii
Easy
Haleakala Sliding Sands Trail Access Road
Paved road to Hawaii's house of the sun
Hawaii
Expert
Waipio Valley Access Road
25% grade into Valley of the Kings
Hawaii
Moderate
Green Sand Beach Access Road
Lava rock gauntlet to olivine sand paradise
Hawaii
Difficult
Old Pali Highway
Abandoned highway through Ko'olau razor ridges
Hawaii
Easy
Polipoli Spring State Recreation Area Loop
Redwood forest loop at 6,000 feet
Hawaii
Moderate
Saddle Road to Mauna Kea Access Road
Summit drive to Pacific's highest peak
North Dakota
Easy
Prairie Potholes Wildlife Drive
Wetlands and waterfowl in pothole country