I just joined this site today. I've put together a very basic map (I attached a cropped portion) showing the topography of Camp Pendleton Marine Corps Base, and have a very specific issue:
I don't have contours or elevation data past 1 mile from the base boundary. Not at this scale, anyway, and I didn't have time to hunt around for high-resolution data from neighboring areas. So does this "fading" effect work for you? I created 10 buffered polygons around the boundary, and set each one 10% less transparent going outward. Anyone know of a better way?