I'm not that detailed. I look at topo maps and go from there. I figure if a car can drive it, i can pedal it. Got low gears? A sense of adventure? Do people actually plan out every turn and road taken? I look to get a sense but sometimes you miss a turn or a bridge is closed or construction. And pack lighter. I find a double breakfast will best all hills encountered. This summer I plan on maybe touring 5 days from the Boston, MA area to up and around the Lakes area of Central NH. I expect to encounter some hills.