Sorry all for the weird post but I'm trying to show a person who has recently visited my lots in Arkansas my CAD interpretation of their pictures to see if I'm on the right track. Be back with more homesteading news soon.....
This rendering is with more flattening at the 600 ft elevation and sharper inclines at the edges. Click the picture to see it bigger.
This one is a straight interpolation between the elevations as if it rose and fell absolutely evenly between elevation points.
