From a Seattle Times column on how budget cuts are drastically reducing the works of national parks and forests.

A typical hiking trail costs, on average, about $1,000 per mile to maintain. Leave it neglected until it has eroded and is in need of serious reconstruction and you can plan on spending upwards of $50,000 per mile to repair the trail. Our failure to act today only compounds itself over time.

Another way of saying if you want your trails maintained, you’re apt to end up doing it yourself. (Hey, it’s great exercise.)