Post History
Some good answers here: Gotchas that can get the unready: A contour interval of 100 feet or 20 meters is common on mountain maps. Even a slope that shows an even gradient can have lots of stairs...
Answer
Some good answers here: Gotchas that can get the unready: A contour interval of 100 feet or 20 meters is common on mountain maps. Even a slope that shows an even gradient can have lots of stairs...