OK, this is still a work in progress. Right now I have a dozen or so things I plan to improve, but I figured I'd send it out and see what folks thought about it. It works with some long URL's (view the source and you'll see) so I figured it was easier to start with this page. Click on
To understand what we mean by the various peak areas and summits, consider the following picture:
You can see that there is at least 15 m of relief around B, C E and F, but that for A and D, going from left to right across the image, you would not descend 15 m before you began climbing again. Similarly C and E have both 65 and 105 m of relief around them, but the areas covered by the green and red are different.