Interesting technique. The water can be used to define the contours as long as the elevation is always increasing. But detailed contours within depressions could be mapped by poking holes so that the depressions can fill up with water from below. :-)
Interesting technique. The water can be used to define the contours as long as the elevation is always increasing. But detailed contours within depressions could be mapped by poking holes so that the depressions can fill up with water from below. :-)
TomPhoto 9 months ago