Why Are Roads Problematic?

Nineteen miles. That is the furthest you can get from a maintained road in the lower 48 states, a land mass covering 2,959,064 square miles. When Lewis and Clark crossed the continent in 1804-05 there were no roads between St.Louis and the Pacific Ocean. Today these 48 states have more than 4 million miles of roads. A lot has changed, a lot has been lost in 200 plus years.